Setup I'm Considering...
 

Ok so here's what I am considering.

I already have 2 Rockford Fosgate 10" P2's @ 4ohms (200wRMS)
http://www.scpunk.net/random/cars/audio/P2104ohm.jpg
I already have a Power Acoustiks 980W 2 Channel Amp (2x220wRMS @ 4ohms)
http://www.scpunk.net/random/cars/au...20RMSa4ohm.jpg
So I'll deffinately be re-using those. I'll purchase one of the enclosures for the subs on ebay.
http://www.scpunk.net/random/cars/audio/Box.jpg
I think I'll replace the front speakers with a pair of Infiniti REF6020CS Component Speakers (2x90wRMS@2ohms)
http://www.scpunk.net/random/cars/au...nitiComp90.jpg
The rear speares with a pair of Infiniti REF6022I normal Speakers (2x60wRMS@2ohms)
http://www.scpunk.net/random/cars/au...tiNormal60.jpg
A Kenwood KAC-8403 to run the four speakers (4x90wRMS@2ohms)
http://www.scpunk.net/random/cars/audio/90RMSa2ohm.jpg
I'll do the DD Conversion and put in a Kenwood DDX6019 Head Unit
http://www.scpunk.net/random/cars/audio/kenwood.jpg

Any comments/suggestions are welcome, what do you guys think?

Won't get on the topic of personal preference in speakers, but i'd ditch the rears and upgrade on your front set personally.