audio newbie, need help

[ol'blazer]

i have stock piled a bunch of audio parts over the last year or so and its time to put them all together in my truck.. haha im really new to this and need some advice.

-i have two 10" mtx subs with a phoenix gold xs2300, 300watt amp.
-i have two 120w jvc 6x9, and will be getting two more 250w near future.
-i have this dock http://www.precision-acoustics.com/head_pa5600bt.php

my questions are:
1. do i need another amp for my speakers?
2. will this dock work good with my subs?
3. is this a good overall set up?

thanks!