I didn't realize I was opening up an existential debate over the MIDI-driven decline of western music when I started this thread. It sounds like I drove one person here to an afternoon drinking binge from my wacky post asking for advice on outboard gear for a MIDI composing studio!!! All I can say is, if I caused a drinking binge, then Avalon must've driven that person to heroin, because the venerable VT747SP is specifically marketed as a conditioning tool to use on stereo keyboards in a DAW setup.
But anyway, it isn't my intent to start a war or get anyone a DWI; I'm really just looking to buy some cool gear and I understand a lot of people are anti-MIDI, so Peace. However, here's my view for what it's worth. First, if you're a composer and you want to produce a decent demo product that'll eventually go to live musicians, you still want to produce a quality sound that you can be proud of, and conditioning gear is part of that, even if the "instruments" you record are cheesy compressed samples from a sound module. Second, keyboard players must condition their sound in the recording process, and their sound comes from samples or synths, not acoustic instruments (unless piano). And finally, there are a lot of mediocre musicians out there, and I'll be damned if I haven't heard some pros extract sound quality out of XVs and Tritons and especially PC2Rs and K2600s that will positively blow away guys with 10 grand worth of mics and pres who can't play or arrange their music. To each his own - I think MIDI studios are cool and I built one, but MIDI music is thin and harsh, and needs some sort of polishing, and that's why it is sensible to look at outboard gear for MIDI modules and keyboards.