Sorry this is going to be a long post please help me out. About two years ago i had a 1998 yamaha yzf600. I Since them i have not had a sport bike. I am looking to buy an 05 bike and need some advice. First off I am 6'1" 190 lbs. I really cant afford to buy a liter bike or the insurance for it. I have thought about getting a gsxr750 but that may be a little out of my range as well. What i really want to know is how much faster the 05' 600's are compared to my old 98'? I have ridden bikes most of my life and i really felt the the 600 i had was both underpowered and physically too small for me. Which of the new 600's are physically the largest and would be most comfortable for me?