I also love the sound of wind in a Pine forest
Also the soft crunching sound when walking on the fallen needles
Frogs at night
Crows calling
The woosh sound when you begin opening a coffee tin
a fire crackling
Hard rainfall on a tin roof.zzzzzzzzzzzzzzzzzzzzzzz
The somehow 'lazy" drone of a small plane tootling through a bright summer sky.
The “talk-y, groan-y, growl-y” whine my dog uses to try to tell me something. (I need some water talky groany growly growl and hit the cupboard below the sink repeatedly with front paws. and so on).
Crackling fire.
The bus engine as it rounds the corner when I’ve been waiting for it for 15 minutes in minus 5 degree weather ;D
That guy in Streetfighter saying “Sonic Boom”
A sudden breath of wind in an autumn forest… the exultation of the pungent leaves, like a potpourri of angels’ wings… then the calming… then again silence.
The Adaware ‘nasty found’ splat…not a sound I want to hear but perfect for what it is.
The Protoss Observer in StarCraft…a just barely unintelligible voice
The tone at the end of a Motorola Securenet encrypted transmission…ok, that’s geeky.
Airliner engines reversing upon landing…finally arrived and safely.
Stepping on a dried ice puddle with nothing under it…a sort of hollow, glassy breaking sound.
1968 superstock Hemi Dart starting…hard to believe those were factory equipped.
The bassy, descending tone when Obi-Wan powers down the tractor beam in Star Wars.
An interception in Tecmo Bowl for NES.
The organ rhythm intro in Green Onions.
The opening choral ‘Ahhhh…’ in the Simpsons theme.
The little, wet plop when Ferris’s sister tosses Mr. Rooney’s wallet at the end of Ferris Beuller’s Day Off.
The clicking and banging sounds old radiators make…
The ring of an old bicycle/tricycle bell…
The hum of a distant lawnmower on a spring day…
The cacaphony of trains rolling across the tracks…even model trains…
The "thhh’ thound my two-year old daughter makes when she puts her tongue between her teeth and says “thome” (some) or “juithe” (juice).
A burbly wet exhaust growl on a power boat…
The racheting sound of ratchet tools…
The ‘diving into water’ sound from old Heckle & Jeckle cartoons.
The perfect ‘dead air’ silence of deeply fallen snow and the squeeky scrunch of footsteps in it.
Baby’s gurgling laughter.
me too!
I also like the sound of the sand giants in EverQuest being hit… sounded something like “Bllawwwuuaarg” 
Cows mooing in the distance.
Horses whinnying in the distance.
Coyotes coyote-ing in the distance.
Popping packing material bubbles (so long as I’m the one doing the popping.)
Distant trains very late at night.
The “ya-reeep” sound labradors make when yawning.
And, of course, the Hypno-toad sound effect.
As far as smells, nothing beats the fragrance of sagebrush after a heavy rain (and, on the opposite end of the scale, I have a thing for the aroma of tire stores — ahh, petroleum.)
Tree frogs at night.
The soft click of Mah-Jong tiles.
The hint of a soft Southern accent in her voice (she has the best voice)
The pop of a wine cork
The soft burbling of a creek
Wind in the leaves
The sizzle of frying bacon
The hiss of steam in a steam room
Oh, forgot to add that odd noise Hippo’s make sometimes. I don’t know if its them being angry or anything. :dubious:
The whine my bicycle tires make when I’m riding hard.
Women’s lingerie hitting the floor of my bedroom 
My kid laughing.
Diesel locomotives accelerating under load.
Ocean surf.
Falling wet snow.
Ordinary (not severe or close strike) thunderstorms.
Bird song.
Maybe I’m dating myself here, but…
“krshhhhhhhKSHHHHHHHHH!”
The sound of a modem connecting. Man, I love that sound.
My Stratocaster.
The 1930s Steinway concert grand piano in the studio 20 feet away from me now. Every other piano I know of pales in comparison.
Ringo’s drums on Abbey Road - a sound not achieved before or since.
My wife’s voice.
The “maow” our kitty Phoebe makes when she announces her presence in the room.
The sound of a summer afternoon’s brief but torrential rainfall in Florida. It rains harder here than anywhere I’ve lived.
For a moment there I thought you were saying your toddler’s latest sentence was “In the not too distant future…”
My 2 yr old sons’s delighted laughter. Nothing comes close.
The soprano in Mozart’s Solemn Vespers, although I suspect music is a little off topic in this thread.
The sound of turbine engines spooling up.
A low altitude pass by a flight of two F-4 Phantoms just below Mach 1 on full afterburners. Now that’s the sound of power.
Hydraulics / servo-motors that open doors and ship hatches on Sci-Fi shows.
The crunch of feet on dry snow when it’s really cold.
A door closing softly on a Mercedes.
My reserve chute crisply snapping open.
The cracking sound you hear right before the BOOM of thunder claps (especially after a close lightning strike).
The whirrthud of my C64’s 1581 disk drive loading up a game. I played some games so much I could almost mimic the “load sounds” for each one.
Anybody laughing hysterically. There used to be a commercial for Whose Line that consisted solely of Drew Carey laughing. By the end of the commercial, I was laughing, too. There’s also the America’s Funniest Home Videos where the guy makes his quintuplets laugh. Funniest clip, ever.
The sound of laying on the grass in late June; lawnmowers, airplanes, kids playing, dogs barking, birds chirping; all commingled into one great symphony of summertime bliss.
The sound of a man two nanoseconds before climax.