Thanks for the compliment on #7 Prowler, I appreciate it.
The Kicker 06S12L7-2 12" 750 watts RMS Dual 2 Ohm Solo-Baric L7 Subwoofer can handle 750 watts RMS(root means square) of continous power. Peak power, what that is is what the speakar can handle in one short burst of power of one second or less, not continously, otherwise it will blow. Sometimes speaker manufacturers display the peak power rating to make the speaker look more powerful than it really is.
Okay, so you wanna get two of the 12" L7's. If you wire them in series [connecting the two voice coils of each driver in series (+ to -) and the drivers themselves in parallel (+ to +)] they will make a 2 ohm load for the amp. I recommend the Rockford Fosgate T15002 which is rated at 1500 watts rms x 1 channel @ 2ohms on bridged mode. The Kicker L7's cost $240 each and the R.F. amp costs $770. I also suggest you purchase one 1 Farad capacitor and one 1/2 Farad capacitor. It's recommended to use a 1 Farad capacitor for every 1000 watts of power.