1024 x 768 still seems to be the norm. I'm set at 1680 x 1050 myself :)

Hmm... I'm at 1280 x 1024.

But I usually make my graphics to fit in the 1024 x 768 as there are still tons of people with that resolution.

1024 x 768 is probably the best then it'll look nice no matter who visits the profile c:

I still code at 1024 x 768 myself, yep.

I believe you can also get little Javascript bookmarklets that resize Firefox to those dimensions so you don't have to keep changing the computer resolution.