Well, I got my first world PvP kill Friday night.
I was playing my human paladin and had spent a considerable amount of time exploring The Barrens to get the “Explore The Barrens” achievement (getting myself killed in the process after wandering a hair too close to the gates of Orgrimmar while trying to find the Boulderlode Mine). My next destination was Darnassus, so I headed up through the Stonetalon Mountains to get to the flight point at Stonetalon Peak.
As I was nearing SP, there it was in bright yellow letters in the Local Defense channel: “Stonetalon Peak is under attack!”
So I thought, “Let’s see if there’s anything I can do about this. I’ve got a few levels under my belt, and I doubt that lvl 80 Horde players are going to waste their time raiding Stonetalon Peak of all places. So maybe I can actually defend this time, instead of standing around shaking my fist and yelling ‘FARGING BASTITCHES!’.”
I rode into Stonetalon Peak and scouted around a bit, found a couple dead NPCs, and then I spotted the telltale yellow name of an enemy player with his PvP flag on, sneaking through the trees.
So I ganked him. There was no honor in the kill; I was a lvl 48 human paladin and he was a lvl 25 blood elf hunter. But what can I say? My tauren hunter was around lvl 25 when he rode into Stonetalon Peak and started sniping dryads, and I would have expected the same treatment had a higher-level Alliance player shown up. (For that matter, while my pally was exploring The Barrens I was poking around near The Crossroads and turned around to find a lvl “??” tauren sitting there on his kodo just waiting for me to do something to light up my own PvP flag. However, I was just passing through, not looking for trouble.)
Also, my paladin posted her spare Cat Carrier (White Kitten) on the AH a few days ago with a buyout price of 150g (lower than the other sellers, who were asking anywhere between 170g and 300g), and it expired without selling. So I reposted it and dropped the buyout to 100g, and it sold within 24 hours 
Speaking of achievements, I’ve accumulated a few hundred achievement points. Are these points actually spendable on anything at this time?
And “Yay! My new 4GB of RAM arrived in the mail today!” I’ll install it tomorrow afternoon. Hopefully, this will allow me to walk in the front gates of Stormwind without completely locking up my computer.