So given those components, what should I be looking for in an amp? I need a four channel, as I'm going to get a sub later when I have more money. Would 50x4 at 4ohms be good? The woofer says 50WRMS...but at what? 3.6? 91321.42? The tweeter says 40WRMS at 6ohms if I'm reading it right. On to amps:

There is the US acoustics 65x4 for $129.99
http://www.sounddomain.com/sku/USAUSX4065

There is an underrated 50x4 American Bass HP504 for I think like $180
http://www.americanbassusa.com/amp_specs.html

As always, let me know if you guys have better recommendations for under $200. TIA.