I am upgrading two PCs in our home with ASRock motherboards based on GeForce 6150SE/nForce 430. They will both be running Vista Home Premium. Because one of the PCs is an HTPC, I need a cheap PCI Express card with s-video - I found a 128MB X600 SE card w/DVI+S-Video for $16. The second PC is primarily an office/email/web browsing system, but has a monitor with DVI input. Does it make sense to add an X600 SE card to this system as well - just for the DVI output? How will this card perform in Vista relative to the onboard 6150SE?