Hey, someone mentioned iRacing on here

I've been in for about 5 weeks now and loving it. FWIW iRacing had a flickering texture problem on my 8800 GT which isn't there on my new 4850. It seems a lot of people with nvidia cards get it, so ATI would be a good choice.
Sure you can't find enough for a 4850? They're stonking good cards. A 3850 you'll be dropping some settings at 1680*1050.
Iracing RULES.
But it's crippling my 8800GTX @ 1920x1200 with only 8x AA....can manage 16x at 1680x1050.
So I just bought a GTX280, that should sort that out, 16Q @ 1920 and maybe even some of the SS modes will work, I HATE aliasing in racing games. I too get some flickering textures.....on the bridge at LimeRock mainly.
For the other games the OP mentioned, a much lesser card would suffice.
Amused to death by the "better tech" posts.
a year or so ago, when NV had DX10 and ATI didn't, the ATI cultists were posting lots of "who needs DX10, there are no games". Well, there's still the same number of DX10 games, but now that ATI have the minor update of DX10.1 (presumably simillar to the update from DX9 to DX9a), it's "oooooh there's LOADS of DX10.1 games coming REALLY soon, and it'll make a HUGE difference over 10." (not necessarily on this thread, but elsewhere).
TBH though, with the exception of Iracing a 4850 would do the trick no problem, as long as you don't want lots of AA (while ATI will give you 2x 4x or 8x with minimal degradation of performance, it nosedives thereafter, at least on the 4850 I tested......16x was bad and 24 was a slideshow, yet I run GTL on my 8800GTX at 32SSAA, and most others at 4xs (2x2SS+4xMS). It took a LOT of posts to get to the truth of that, in fact I was almost committed to a 4870x2 until I found that....
a. There are NO driving games (mention Grid on this thread, in the presence of SimRacers, at your peril) which are supported by Xfire.
And.
b. ATI's 24x is nowhere near as nice as NV's 32SS (or even, subjectively, according to some people, it's 16Q setting).
The lack of automatic profiles could be a pain too, as you will need to set lower AA for Iracing, and can get away with much higher in other games.
Oh........
A 3850 better and faster than a 280? Keep taking the pills, I'm sure you'll feel better soon.