Pinnacle Studio 11: It does your basic stuff fine...but its no real improvement from Windows Movie Maker, just less n00bish. Your better off with Sony Vegas or something.
Stop Motion Pro v5: I'm using the most basic package. It does its job, and it does it pretty well. It compresses playback, but its fine once rendered. It also has Onion Skin and Audio Synch, which are two invaluable features to have. However, it does have problems picking up my old JVC camera, but that's probably the cameras fault.
Audacity: Possibly the best free audio recorder, although its recently had a knack of crashing for no apparent reason. Could just be my version....
GIMP: A free image editor that I have no idea how to use, but what I can do on it is pretty awesome. Its free, so you cant go wrong, and there are several handy tutorials online.
Paint: I occasionally use this for masking, since I dont know how to mask on GIMP (yet...) Its simple enough, and with most computers you dont even have to install it, so no loss....
SUPER: A free compressor that mostly compresses well without a watermark (which is always a bonus). However, it refuses to work with me whenever there is a new version available......hmmmm.......
Finale Notepad: Its not bad, but it only exports to MIDI, so unless you have some kind of converter its useless for Brickfilming.
-MRB