alkaline: i hope you enjoy the bike. i was about to hop on that deal last month, but decided to get a new wheel set for my conversion.
mcmcayuki: i think maybe a little something bigger than 50cm, maybe the 53cm? the best way to find the right frame size would be to try out a bike with a geometry similar to the bike you want to buy (kilott) at a lbs or a friend's bike. other people who bought the kilott maybe able to help you out with sizing, but you won't know for sure unless you hop on one.