Tips for an '02 Install?

Any tips or tricks on installing sound components in an '02 Civic Sedan? I'm putting in
-Eclipse CD8051 headunit
-6.5" JL XR650-CSi Components in the front
-6" JL VR600-CX Coaxials in the back
-JL 12W7 in the trunk
-JL 300/4 4-channel amp
-JL 1000/1 Subwoofer monoblock amp
Just gonna use some 0 ga. wire to the trunk and spread it from there. Should I get a 1 farad stiffening cap? A new battery? A new alternator? Thanks guys.