the new Street Triple range is 765, vs 847 on the FZ/MT09. still something, 82cc, but nowhere near 200cc.In terms of power, according to some quick google searches, they're roughly both around 115ish hp. havent peeked at torque figures, but theyre both triples. probably a couple less than the FZ's, thanks to displacement.
675cc vs 900cc, i dont see 200cc+ more power in the FZ.
the STR is a better bike. but you pay for it.
but just find a deal. i bought mine with 16 miles, on it for 8 flat. brand spankin awesomeness