Purchased March 2011 from Cyclepath Danforth in Toronto. This bike is in excellent condition, and has been maintained by Cyclepath over the past 2 years.
It rode the 2012 Ride to Conquer Cancer, as well as the 2011 and 2012 Tour de Greenbelt.
It has a 2x8 speed Shimano 2300 drivetrain, and changes include a new chain and SRAM PG850 cassette that has a 28t low gear (100km of use), and a 100mm stem.
Platform pedals with toe clips can be included if you wish, the pictured blue saddle bag is also included (since it matches the bike).
I'm 5'8" too, a 54 is probably just the right size for you if you're looking for another bike. Something with a 545mm or 550mm top tube would be right.