Did any of you ever use MIDI Quest? ( Current link )
I really liked how I could rearrange all of my patches, save the entire thing, then make a new one (and save that too!).
If and when I get to do it all again, I'm thinking all I need are a couple of "real" keyboards (and, maybe, a controller with lots of knobs and sliders) then a bunch of the rack-version synths or software synths.
Then, using the sofware above (or some newer one), I could save the setups I come up with instead of having to hunt for "that" sound each time.