Well if you had to make due with what you got I would take the amp, bridge two of the channels to make it a two channel amp and run those components with 50 watts to each component up front. As to your other question don't get the components for the rear because they will ruin what we call your soundstage. Most music is recorded with only a left and right channel. If you get components in the rear they will drown out what the front components are doing, and being as the driver sits in the front, it won't sound good.
ok thanks, yea I was pretty sure you could bridge the amp. Will 50 watts be good enough to power these components though? theres recommended at 90rms.
Last question is, with just one set of components though, in my mind, my 2 12" 12w3's would just totally drown out the music, is this true or what?