Cool Edit Pro is a pretty nice program....that's what I used for quite some time. I'm using Adobe Audition 1.5 right now ......Cool Edit's newer version.
Just grab a used SM57 or Sennheiser e609 off of ebay, and your off! (Probably around 50 bucks each...) :) ......uh, what preamp are you using.........and sound card?
Rick