The meanest of my amps is a 70's model Music Man 130. It has twin 12" speakers, one hundred thirty watts, tube circuitry, two channels, tremolo, and reverb. This thing is big, heavy, and loud, just like me. Sometimes, I run this amp in tandem with the Fender, which gives a really powerful tone with lots of low end. I would use the Music Man more often, but the thing isn't all that easy to transport...its so big, its got wheels on the bottom.
I also have a Crate G60 with a Celestion that I use for practice.
Most of the time, I play clean or use the gain on the Roc Pro, but I also have a flanger and a Korg G1 digital processor.