You only need an NTSC VCR and a PC capture card/USB - Both should be relatively cheap but you can always borrow the VCR from someone as they were not uncommon on the last days of the format (most 'new' VCRs are both Pal and NTSC). Capture Card is no more than $30
Basically, you plug the capture card to your PC and then Plug in the VCR to it (AV). Then play the tape from the VCR while hitting record on the capture card software. It will record what is being played into an AVI or MPEG format, essentially digitising it for you to watch/Edit and do as you please.