Protools Free, Cakewalk 8, Master Tracks Pro (Passport--out of business!), Some software out of British Columbia that cost $29.00--it actually does a great job with digital audio!
Additional notes
Small time operation, lots of finished songs, having a load of fun. Not really sure why, but I don't seem to care; this is what keeps me sane. 80's - inspired alternative, some soundtrack work for university media students.