GPU upgrade on Epox MF570 Sli

Question

I think you helped me in the past with some questions about this board, so I'll try hitting you up again!Can I use a PCIe 2 GPU on this board? From what I've read I should be able to, but I don't want to shell out $160 only to find out I have to upgrade again to a new board.Currently have a x1800GTO2 and I'm looking at moving to an x4850.I have to upgrade RAM (jumping to 4Gb - I guess will only look like 3.2 or something to XP but one of these days maybe I'll move to Vista) and harddrive so I figured I'd look at GPUs also.Just wondering if you think it will be okappreciate any thoughts.thanksweb