MUSIC SYSTEM under 25 k

hai friends i have just joind in ... bought a spark recently LS performance is superb now i need a music system that my neighbour should envy..
i need a HU, subwoofer more then 150 rms at least 12 inches and more Rear 6 x 9 co xial Front 4 inch component and a powerfull amplifier the system i have shortlisted is as follows:-
1. HU pioneer 6050 or any other better deal in this range (suggest)

2. JBL GTO 937 rear coaxial 6 x 9 (300) watts

3. front speakers not yet decided but i need component ones.
4. amplifier is JBL or kenwood channel(how many) should be sufficent and watts?
5 subwoofer 12 inches at least 150 rms which one is better pioneer or sony..
6. and suggest a suitable wiring for it....

the kind of music i listen genreally hip hop , slow and more base oriented..(v groove effect) i dont want that dham dham sound i want ghoommmmmmmmm like sound i think u can make out what i want .. kindly spare some of your valueble time and suggest me a descent system and the best....

wo man! can a spark take 12 inches,do you really have the space at the rear for it?
Just out of curiosity!
Any way,i have very little knowledge in car audio,you can wait till you get some professional advice from our members here.

Happy Driving
Vj