Check out the Boss ME-50. I'm checking it out these days, too, as an alternative to the GT-6, which I feel has too many useless effects for my purposes.

Here's the Harmony Central review: Click here.

Basically, it's a bunch of stompboxes put together. No menus, no complicated settings, just a bunch of knobs and a red one-character LCD. It seems that the one complaint against it is the lack of a graphic EQ.