Seems like your upgrading to a more track appropriate bike. If that's your thing, that's an excellent bike to do it on. But if you're more of a street rider, the gixxer's probably not going to be as comfortable as your SV for those 200 mile back road rides. Seems like Kawi makes a pretty comfortable 750, or you've got a number of 1000cc standards like the FZ1.
Forgot, the power difference will be pretty significant above 6K or so. Your SV is putting out 70hp, that gixxer will put out something around 110-120 hp at the wheel I'd guess.