Ours is a mix-up of Carvin board,Yamaha MSR 400 top, Peavey SP118's self powered subs. The Yammies are self powered too.
We run everything through the board,including drums and bass. The guitars are also direct, no amps on stage.
The only amp on stage is the bass so we have some feedback from it up there and we don't over kill our monitors though we did a gig last week without it and it sounded pretty good through just the monitors.
I use a Digitech GSP1101 with a control2, the other guitarist uses a Line 6 rack mount(the newest one).
I do miss having a 4x12 blasting awat at me and I miss some of the dynamics of it, but I don't miss the weight and the volume issues.
Having everything going direct gives us alot of control over everything in the mix.
Disclaimer, I started this thread of of curiosity not to start a arguement over direct verses amps. I like them both!