i currently have a polk audio db6500 components for the front stage and i've never had any complaints.i know there are better stuff out there but so far, the set has been meeting my expectations.
about the subs, IMO, i'll go with the solobarics. i'll take kicker over mtx anytime. i have a pair or compvr's and they provide the bass i need!
one more thing, a lot of guys in the business has been recommending not to put components for both front and back. you want your sound stage coming from the front and not from the back. what car audio enthusiasts recommend is a rear fill set-up.
well, that's the kind of set up i have now and i'm lovin' it!