2 Channel for MIDS

[jconnway]

If you have seen my front doors (peep the sig), you know that I'm currently running four 6 3/4" mids in each one along with 8 tweeters. I want to do the rear doors in a similar fashion to the front, but with 2 sets of 6 3/4s. However, I'm out of channels on the amps I have and I will need another one. What I'd like to do is run a 2 channel amp that puts down between 300 and 400 watts per channel. This way, I can maintain the right and left channel set-up I currently have and throw alot more power to those front speakers (ideally around 75 watts). At the moment they are way underpowered.

any suggestions for a good 2 channel? the whole brand build is out the window, i'll take anything thats gonna give good clean power for a decent price.