It would help to know at least some of her interests.
Does she like wine for instance? They have small fridges that are racked for 20-30 bottles of wine and have temp controls set up to keep (red) wine the right temp (mid to high 50’s). That and maybe a couple of good reds would be a really cool gift. I got my little mini wine cellar for $299.
Adventurous? Get her a tandom skydive. Want to spend a bit more, pay for here to get get certified.
Maybe a short cruise? They have 3 or 4 day cruises for pretty reasonable prices.
Jewelry - Look at some of the designer stuff from… dang, cant remember the guys name, but I am pretty sure this stuff is done by him.
http://www.jewelryimpressions.com/tanzanite/opal.html
The pictures don’t do the stuff justice. I can tell you nice tanzanite, opal, diamond stuff really gets alot of comments. Gordon’s Jewelers carries this type of stuff.
Then there are flying lessons of all types. Sailplane, heli, general aviation, ultra light, etc… It is difficult to explain the personal satisfaction of getting to the point where you can take any aircraft into the air all by yourself that first time.
Maybe one of the new IPAQs, they are really nice.
If you really wanna show her you love her, give her a day where you don’t check the SDMB even once… hahaha
Try a weekend in a nice bed and breakfast.
If I know more about her and where you are at, I can probably come up with a bunch more.