I would like to record AND edit audio on my old cassette.

I would like to record AND edit audio on my old cassette tapes. I have dozens of tapes that I need to burn onto CDs or DVDs. But I also want to edit them first and combine some audio from different tapes. I consider these tapes rare and I need these to be transferred into more durable media like compact discs.
I have a built-in sound card and I do not know how to go about it. I have Windows Vista Ultimate installed and is running smoothly. Any suggestions?
