Thinking of upgrading my system

[BLindsay]

So first here is what i have now

Alpine CDA-9835 (27wrmsx4) great sounding deck just show its age
JL TR 6.5" Components front
JL TR 6.5" Coaxials rear
Alpine 12" Type R ported (new style type r)
600wrms Alpine Amp

Looking to start with upgrading subs and headunit and interior speakers down the road. Looking to improve both SQ and SPL of the subs. The 2 setups i was considering were.

2x Alpine Type X 10" in a sealed box with a 2000wrms alpine amp
2x JL 10W7 in a sealed box with a JL 1000wrms amp

The JL's are rated for 500wrms each so that amp is perfect, the Alpines are rated for 1000wrms each so the 2000wrms amp is good for them but here is the issue i see. the JL setup is def more money BUT the 2000wrms that the alpine amp draws is gonna be a huge drain on my electrical system. Will have to upgrade the alternator battery and do 0 guage wire (pain in the @ss to run and work with) where as my factory 140a alternator and 4 guage wire will be enough for the 1000w jl amp. (would still upgrade battery, the battery my car takes is huuuge)


As for the headunit i was thinking something along the lines of the Alpine IVA-W505/P1 as i want something with NAV. I have a nice double din opening so the big touchscreen would be nice.

I will have to upgrade to an amp for the interior speakers later as it seems im gonna drop in wrms from the 27 that my current deck has to about 18 with the new one (amp will be cleaner anyways) and i may upgrade the interior speakers but im not sure on that yet.

Thoughts? also do you guys know of any good dedicated car audio forums?