Learned how to ride a bike on a Suzuki Katana (600) and now I ride a Harley Low Rider.
At 6'6", you are going to be cramped on just about any bike out there without some modifications. I believe the cramped feeling will be further enhanced on a crotch rocket.
If you are dead set on getting a ricer, look into getting a used or new Hayabusa. That is about the biggest rocket you are going to find. Those bikes are a bit overkill in the engine department, but the ride is definitely more comfortable than a lot of bikes (other than cruisers, of course).
Save up and buy a Harley. Hell, you live in CA....You could ride it just about every day and save yourself some serious gas money too.