mono amps

[sdmf]

hey guys, im a novice in car audio, i know what i kinda want but not sure on the power ratings. ok so im looking at subs right now, i want something good but not too over powering. im thinking gettin one solid 12" 1600w rms sub. 4 ohm dvc. now what will it take to power it up 1000w mono or i have to get the 2000w mono. is this sub too much? or should i just get 2 12" svc 4ohm 600w rms and what would power that up. if you must know the subs they are from crystal mobile sound. either 2 comp 12's or 1 comp x212

http://www.crystalmobilesound.com/subwoofers.htm

any ideas would be welcome.

this will basically determine the setup of my car, already have the head unit in mind, and will be going with ppi amps, depending what i need to power up these babies. but one mono and 1 4 channel ppi amp and a set of crystal scc6 or q series mbquart components