Ya kno i would get the 750 because of the looks but i have heard from several people that the 600 can actually pass them 750 with a simple tune up. i LOVE the ZX6R they are my new sexiest bike. Mikes r6..HAHa yer so funny buddy. He says it will last alife time and he cant ride his r6 because its over heating and leaking from the radiator. hahaha
" Oh and I would also never buy a bike new again, too much $$ you're throwing away"
As for that thank you very much. that some of the info i was looking for and opinion i was looking for. :)