lol the ASUS EN8600GT 256MB GDDR3 is like 5k but there is one other model of 8600GT 256MB GDDR3 which costs 3k. Go for it if you are one budget.
You can also increase your budget and get a Xpert Vision 9600GT 512MB GDDR3 for 5.5k
As per now, Far Cry 1 will run.
Crysis will crawl.
Far Cry 2 might not crawl also.
Dynet RAM is good, dont worry. It sure is cheap and infamous but the performance is good (not excellent...but good

).
E7200 is an awesome CPU.
630i.......best budget mobo now (under 4k).
All-in-all, good config.