The L7 Solobaric 12" is rated to 750w RMS, so this isn't too much power.
One note, if you decide to go with a 2-channel amp and bridge it to 1 channel, make sure that it is still stable to 2 ohms. A 2-channel amp that is stable to 2 ohms is typically only stable to 4 ohms when it has been bridged. Since you're talking about a 2 ohm speaker, you're probably better off getting a 1-channel amp.
Please note, I haven't really kept up with car stereo stuff over the last 5 years or so. When I stopped paying attention, Rockford Fosgate made really good amps. I'm just assuming that they still do. They could have gone to shit since 2000 and I wouldn't know it. So, you should probably do some more investigating before you just go out and buy a Rockford Fosgate amp.
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