You must really be ripping yourself off if after a week and a half of doing that you still can't afford one game...
I had Forza 2 cause it came with my Xbox, and it was fun for a while... but I can only play sim racers for a little while before I get bored. Drifting is what I'm all about though, which is why Dirt 2 was awesome. Won't be getting Forza 3 myself, but I'm sure I'll play it at some point down the road.