I used a setup like that and BYW have it for sale. Check the For sale forum.

Pros-Very light and compact, easy to use and sounds great. Inexpensive
Con- more cables than a single board.

I fell into a great BK9 deal so thats why I don't use the setup
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Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer