Yeah, I pretty much use Vegas exclusively, even for two tracks. There's not much you can do in SF that can't be done in Vegas, plus you get the added benefit that you can just drop video right into the time too if you want... Not to mention full multi-track, multi-bused automation of plugins inside a non-destructive workflow that doesn't alter your originals -- you render out a new version when you're done, and then you're left with a master, the project file, and the untouched originals for archival. Vegas rocks... And remember to put a dither plugin at the end of your plugin chain if you're taking 24-bit down to 16-bit (you need to use a plugin for the dither because a 16-bit render will just truncate).