The last actual CDs that I bought was when I was in this solid Krautrock phase. I managed to buy the excellent "The Wumme Years" boxset by Faust (and saved 60 bucks on it, too!). If you haven't heard of these guys, they're great. They do a lot of tape experimentation, and made a lot of sounds I've never heard before. They "kind of" have coherent "songs" but the CD's great just to see what crazy thing will pop on next in a song. Heck, you can't really go wrong with the lyrics to one song. (DADDY! TAKE A BANANA! TOMORROW IS SUNDAY!)

I also got the ever famous Krautrock masterpiece "Tago Mago" by Can. Basically imagine Pink Floyd with a really good drummer (no offense to Nick, but this guy sounds like a drum machine! A precursor to techno!) and an avant-garde/funk groove throughout all the songs. And throw in some really crazy tape experimentation.