I want to digitise footage from a lot of DV tapes - should I use my camera or buy a tape deck?
Another option is to rent an appropriate deck from an equipment supplier. I don't know your local market so I can't recommend one, but I'm certain there are some in London. With a pro or semi-pro deck you should get advantages of speed and quality for much less cost than buying, and with no wear on your camera. You also retain the use of the camera if you need extra shots etc.

As for the 'how', that depends a bit on what software and hardware you plan to use. Maybe you could supply more details.