New system, and looking for upgrades

I have recently finished my system, well the first phase.

It starts with a Low end Pioneer HU
which feeds 16W to the Kenwood 4*6 and 6*9 front and rears [getting a 2x60W amp for the front]
And feeds my old BA2260 2V producing about 250WRMS of power to my orion XTR3 in a 3.34CUFT enclosure w/ 32SQIN port @ 32ish HZ.

Im Am looking to upgrade everything.

the HU im looking @ is a Pioneer
DEH-P80MP (http://www.crutchfield.com/S-vNhLAhYtqN1/cgi-bin/ProdView.asp?g=300&I=130DEHP80M) or a DEH-P7700MP (http://www.crutchfield.com/S-vNhLAhYtqN1/cgi-bin/ProdView.asp?g=300&I=130DEHP770)

then i dont know about my speakers, cuz i dont know of any good components for the stock locations, and i dont want to spend the time, energy, and money to relocate them to the kicks. this car isnt worth it.

i want to put a Viper 1200.1 on a LI 15", so about 800WRMS in the box i have now, or a slightly larger one.
OR
the new XXX w/ a mathcing amp, it depends on there performance and there price

so what do yall think?

P.S. i hit 116 @ 32HZ and 121 @ 45hz, not TL but on a actual DB meter @ the local [well 63miles away, but the closest ive found so far] audio shop

Most component systems can fit in stock locations, you dont HAVE to put them in kicks. The viper on the LI sounds like a good idea, it will def. be loud. The new XXX is going to be xtremely expensive, an same goes for powering it,but i dont know your budget but the new XXX would be worth the wait if you can afford them, imo.

if its under 600$ i could swing it

and my fronts are only 4*6, and my rears a 6*9, are there any compents for those?