I had one of these powering 4 boston acoustic 6.5" and 2 rockford fostgate P2 12's and it performed awesome. never a problem. And its $153.50 Pretty close I think.
http://cgi.ebay.com/AUDIOBAHN-A6004...ryZ39739QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.com/AUDIOBAHN-A6004...ryZ39739QQssPageNameZWDVWQQrdZ1QQcmdZViewItem