i am building a system for my truck,i found an amp i seem to like
but i dont know which speakers and woofer size to go with???
min rms from amp to min rms from speakers.

amp specs.
100+4 +140+1 4ohms
280+4 +360+1 2ohms

if i want to stay at 4 ohms what would be the max of the min rms
could i go with and still sound good ( say a speaker says 200 rms) would this work so i could still have the ablity to go to 2 ohms if i wanted to,to really jam??
what would a good size woofer or two ,rms ,total watts and in
to put in an extended cab chevy??? please help!!!!!!!!!!!!!!!!!!!

thanks ronnie