Go get a Geforce 7300GT DDR3 version, it is a very nice card, score 5000+ marks in 3dmark05 at default core clock and memory. it smoke out the 6800GS,x1600 and even x800gto(in some games) and come close to 7600GT. what nice is it, it can be overclocked to 50% of its core clock.some more, its price range is almost same as x1300.
make sure u get the DDR3 version and not the DDR2. but too bad this card is only available in Asia and UK only.