I'd suggest an Avatar 2x10. It's a little over your budget, but they sound decent and get moderately loud. Alternatively, start watching Craig's List and search the Music-Go-Round website as well as the TB classifieds for 2x10's.
$200 is aggressively cheap but with a buyer's market you may be able to find something.
KO
$200 is aggressively cheap but with a buyer's market you may be able to find something.
KO

I'm pleased to see you here, but I'm curious what brought you into this thread. And you're officially invited to the 2/20/2011 MN GTG...