Welcome.
That board is PCIe+AGP, so assuming you're going for ATI AIW AGP on XP here, correct?
Decent CPU needed by that board.
Getting the computer is only part of the battle, you also need the proper VCR>TBC for a workflow.
Nothing here is a "pro" setup, nor a cheapskate setup, just a standard setup. VHS video requires good VCR (ideael is JVC S_VHS deck with line TBC, to help you avoid lots of problems later), some sort of frame TBC (an an actual aframe TBC will again avoid lots of problems and errors when trying to use it), and the good capture card (again, avoid problems).