I'm guessing 6-10.
As titles that I've been keeping an eye on go down in price, I'll start picking them up. I still don't have The Orange Box, CoD4, and several others from earlier this year/late last year that I've been waiting on price drops.
Several new releases that I'm also eyeing are:
Sid Meier's Civilization Revolution
Soul Calibur 4
Too Human
Mercenaries 2
Star Wars: The Force Unleashed
Fallout 3
Fable 2
and Gears of War 2
But I'm probably going to wait on most of these to see if I get them either for my birthday and/or Christmas.