Philip,

Check out the PMX 2000 Power Mixer by Behringer. 250W/250W stereo, 10 channels, 3 Stereo Input channels, DSP and vocorder effects, internal fan and it's only $299!!!

Pick-up a couple of 12" speakers with horns, some stands and you've got your self one heck of a PA/Keyboard Amp. I've been gigging with this setup for about 3 months now and I couldn't be happier. I play all size venue's including outdoor gigs and this has more than enough power.

Al