Hi all, I'd like to upgrade from my Lexicon MPX-100. It has a nice collection of effects in it, but I'm primarily interested in reverb and delay (for general purpose home studio use). All that other stuff (chorus, flanging, etc) is unnecessary. I'd like a reasonably high end unit, under a grand if possible. What should I be looking at? First, what's a good "commercial" unit, comparable to the MPX-100 but maybe a step up, and then what's a good "professional" unit? Thanks!