I've put together 14 high-quality original podsafe instrumental tunes from my Penmachine Podcast into a CD album you can buy. It also includes a bonus data DVD with a bunch of cool stuff that isn't on this website. Find out more...
If you want to hear what a difference a good recording tool like GarageBand makes, take a listen to my 2001 demo of "It Wouldn't Hurt" (2.4 MB MP3 file) and compare it to the rest of the tracks in my podcast.
It's a little ditty I recorded with my old Power Mac, a free version of Pro Tools running on Mac OS 9, a drum machine program called Virtual Drummer, a Radio Shack microphone, and my guitar and bass plugged straight into the computer without any effects processing. (Even the guitar distortion is purely me overdriving the Mac's input.) For me it's fairly painful to listen to, but I guess it doesn't hurt too badly, considering.
You're welcome to share it, and if you really want you can get it free from iTunes or on the Podsafe Music Network too.