If your VCR can play NTSC tapes then in theory you could hook your PAL-DVD recorder to your VCR and copy the VHS tapes to DVD.
or
Buy some thing like Magix Movie Edit, hook your VCR to your PC via the tv card and sound card, record the VHS tape in to the PC.
Then via Magix Movie Edit convert that to PAL DVD and save it.
I did that with a few American VHS tapes i had and it works.
or
Get one of these VCRs with built in DVD recorders
:-
http://www.nextag.co.uk/Samsung-VCR-...uk/prices-html
Then just put the VHS tape in, follow on screen instructions and let the VCR transfere your NTSC tapes to DVD.