First see my answer in click here
If you want to go ahead then you will need a capture card (unless you are inputting from a digicam with a DV output into a firewire port).
Base on you wanting to capture analog VHS tapes you will need a cable (scart on one end with a direction switch and suitable connectors for your capture card on the other - probably composite + line in)
Software - there is a range to suit all pockets. You might get some bundled with your capture card, If not then try a free trial of ULEAD visual studio.
Hope this helps