personally. i'd go to the triumph website and look for a demo day. free rides on all triumph bikes. last spring i test road the 675 and the speed triple. i'm still waiting for the perfect deal to purchase though.
it's a pretty aggresive riding position. after our 15-20 mile ride i felt some discomfort.
if you can't get to a demo day, i'd try to find one that is on a vertical stand. something you can get both legs up on the pegs and both hands on the bars and hold that position for at least 5 minutes (like you were riding).
also check
Triumph675.Net