the second one. from that list.
But might i suggest something a little more powerful?
Newegg.com - Palit NE3TS25EFHD02 GeForce GTS 250 E-Green 1GB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready Video Card
It would be like $10 more at the most. But its only like 200MHz faster. Also more memory.