I found a Lexicon MPX 550 http://www.lexiconpro.com/mpx550/index.asp at guitar center at a price I can afford. I wanted to know if anyone has used it before? What are your reviews for it? Also, what about the TC Electronic M-OneXL http://www.tcelectronic.com/M-OneXL. Which one would you suggest. I've narrowed it down to those two. I know the Lexicon name, but not the other, and they're pretty comparable in price. I just wanted some third party input before I shell out $400 for an EFX unit. By the way, thanks for the input for the dbx Driverack, I wound up getting it for my birthday. I love the thing! I've used it for our theater, church, room, and it's worked flawlessly.