I expect my yz426f to be sold tommorow as a deposit has been put down on it. I am going to be imideatly looking for a bike and i guess i am going to stick to yamaha b/c the 426 and 1999 yz400f i had were so reliable. I would like to know how the 03-05 450f's were?? I am talking about power, handling, reliabilty??? Are there any differences in the 3 different years?? Will they FEEL lighter than my 426 or is the 15 lbs just a difference on paper?? Thanks..oh and by the way i have 2 grand to spend and may spend a couple hundred more for the right bike..