VIDEO CARD FOR 200 BETWEN THESE 2

OK GUYS HELP ME OUT
I CURRENTLY OWN A EvGa Geforce 6600 256Mb running at 530mhz / 610 mhz

i need to buy a second pc, with same Video card/Higher performance card

I can buy another same card for 140 dollars
or i can buy an MSI GEFORCE 6600 AT 159 dollars

ther eis also a ABIT X700PRO AT 190 Dollars

i see everywhere that them both ABIt and MSi do the same

what now ? _ ?

(i cant go any higer than 200 and these are all my options now, wish i could go for Gt 7800 or something)