If you buy a 600 you'll be looking to sell it in a week. They have limited power and you get bored quickly. Duc's are a nice show bike, but if you are lookin for performance, get a rice burner. The major differences in the 3 majors are very small. The biggest thing you should really consider is the riding position. Yamaha's sit very aggressive, Suzuki's are somewhat agressive and Honda's are the least aggressive sitting position of the three...but it is the most comfortable to ride IMO. I personally ride RED (Honda). You can't go wrong with either of the 3. The biggest advice that I can offer is this...
"Ride it Like you Stole it"...they are made to ride.
Words of advice from 4.6is + Ryder.............Phil
"Ryders live a quarter mile at a time"

Checkout photo in my members album.

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2011.5 Dinan ///M3:
SSII DCT
Competition Pkg
Convenience Pkg
Premium Pkg 2
Heated Seats
Enhanced Premium Sound
Black Kidney Grills
BMW M Performance Steering Wheel
BMW Carbon Fiber Performance Spoiler
BMW Aluminum Pedals
Dinan Exhaust
Dinan Mid-Exhaust (x-pipe)
Dinan Carbon Fiber Intake
Dinan Performance Tune
Dinan Pulley Kit
Dinan CH-R Wheels
Dinan Carbon Fiber Strut Tower Braces
Arkym Front Lip
Carbon Reflectors
Lux H8 V3
Brembo 365mm BBK