When i looked up those two cards on newegg they go decent reviews but most say that although its a good deal it wont be able to run games like oblivion oh high settings what kinda card will that take?

$200 Us

The max im willing to spend is about 200. As for companys im not sure which i prefer.

Also how do i check my max power supply?

http://www.alibaba.com/catalog/10911529/Sony_VAIO_VGC_RA828G_Desktop_PC.html Also I have upgraded it to 2 gigs of ram.
I have tried before unsuccesfully and after a few years of owning it its...