I need to switch over to Sibelius, Finale is starting to annoy the hell out of me.
Anyway, guess I'll update my list:
General, non-orchestral MIDI composition: TabIt LOL (guitar tab program, windows only)
Orchestral MIDI compositions: Finale (windows or mac)
Post-composition, for Electronic Pieces: Import MIDI into Digital Performer, and hook it up with Reason. (I do this part on a mac, because DP is mac only)
Post-Production: Peak LE (great for EQing and normalization)
I have access to ProTools, and a ton of other programs like Sonar and Samplitude, if I need them. Music school ftw.
Actual instruments I own:
Washburn Electric Guitar
Fender Squier Acoustic
Taylor Acoustic
5 string fretless bass, cheap, no-name. Sounds great, though.
Crappy little midi controller (M-Audio O2)
Crappy big 7 year old MIDI keyboard (Casio something)