It's actually a great year model to buy! In 2011, you will be getting the most refined version of the gen1 chassis.
What other mods are on the bike?
Check over the usual. Check the oil and air filter, shake the bike down (axles, tires, drive shafts, etc) for any worn parts, look over the seals for any leaks. Big thing is to make sure you talk with the seller for a while. It's easy to ask a few slick questions and really get a good feel for how honest of a guy he is and how the bike has been treated.
What other mods are on the bike?
Check over the usual. Check the oil and air filter, shake the bike down (axles, tires, drive shafts, etc) for any worn parts, look over the seals for any leaks. Big thing is to make sure you talk with the seller for a while. It's easy to ask a few slick questions and really get a good feel for how honest of a guy he is and how the bike has been treated.