Eon or Carvin or other?
OK, If you're mic'ing drums you need 15" . Eons are powered - so you run right from the line out of the mixer into the speakers. How much power do you need? If you're playing loud guitar amps in big rooms or outside you'll need the G2s -400 watts($70...
What I need to amplifie my voice?
If you're going to be performing for more than a handful of people, then you need a mic. I'd recommend an SM58, made by Shure. They're very versatile and durable. Depending on how big the venue you're singing at is (or if you just want to sing at hom...
PA Speakers - Carvin vs. Peavey?
I would go with the Carvins. 15 definitely. Don't even think about smaller speaker size unless you want your stuff sounding like it comes from a transistor radio.