It's really a lot more affordable to take you cassette into Walgreens or Walmart. They will transfer the tape for you. It usually has to be sent out and takes about a week. Video stores like Blockbuster or Family Video can also transfer them for you.
I didn't know Walgreens and Walmart did VHS to DVD transfers. That is pretty neat. I haven't seen a Blockbuster or Family Video around in a few years now.