I was thinking of buying a PNY GeForce GT 520 (Fermi) 1GB card. they seem to be cheap and run well.
I'm aiming to be able to run FarCry2 and Alliance of Valiant Arms very well, along with Left4Dead2 and Call of Duty: Modern Warfare 2.
Would this be a good (DirectX11) card? Or does anybody have a more recommended card?
yeah I would oc that cpu as much as you can, and get something along the lines of a 5770, the gts 450 is not worth 120 imo bc you can get a 5770 which outperforms it for the same price or cheaper. I would not go any higher than say a 6850 though if you do not plan on ocing.. COD, LFD2, and Far Cry 2, im sure run solid on dual cores.
BTW all the games you mentioned have zero dx11 features (not that it matters) just fyi COD and LFD are dx9
well your psu sounds sketchy to me so I would stick with a 5770 which has barley any draw and I would get another 2 gigs of ram, what resolution do you game at? You should be able to oc a bit even with the stock cooler. For example I have a backup rig with a athlon II 240 x2 2.8ghz oc'ed to 3.5ghz on the stock cooler with zero problems and generally low temps