I was recently introduced to the singlespeed/fixed gear biking thing and am really interested in getting a bike of my own. Do you guys have any suggestions on what kind of bike i should look for and something worth having for a decent price? I would love any suggestions... brands? styles? equipment?
I'm 5'6" and the dude at my LBS said i should look for a bike around 48-50cm, but thats all the knowledge i've gotten.

Someone please point me to the right direction.

THANKS!