VHS to DVD question

I didn't know quite which forum to post this in, but hopefully this one is acceptable.

Just picked up some video tapes and I'd like to tranfer them to DVDs. Am in need of some tips and info on how to do this. Have both a VCR and a computer with dual CD/DVD drives. The way the puter is set up is that I can either dump the contents of a CD or DVD into memory and then edit it and finally dupe it onto a virgin CD or DVD......or.....I can make a direct real time copy.

I can only assume there's some way I can input the RF or perhaps the RCA jack outputs of the VCR into the computer, but there are no connections of that type, do I need to buy some snazzy video card or some other device? Help me Mr. Wizard!

Anthony