I think at the most I'll spend is about 200-300. At the moment I have all the speakers covered except a sub. I was thinking of a mild system by adding an amp that wil either power everything 4 channels or just add a 2 channel with the 2 channel I have now. I'm leaning towards an amp that can do 4/3/2 channels so it'll be easier to ad a sub later. So the $2-300 is basically for a sub right now and install. JBL 80.4, or Rockford 301s (whichever one has 4 channels-50w each) sound like they are my speed.

I saw a nice pair of Kenwood 4-way that looked pretty good if I need to replace my 6x9's they were about $80 and rated well (later).

So I shouldn't worry about an amp that maybe rated 10-30 watts higher then my speaker's rms? As long as I don't slam the volume?