well theres not a lot of choice if you want the 'no hassle' off the sehlf approach, the langster would be good with the extra $200 upgrades (saddle, pedals, seat post maybe) or go talk to the guys at iro cycleshttp://www.irocycle.com/fixedgearandsinglespeedbikeframesfromirocycleinc/id68.html and see if they have room to drill the rear bridge and add another brake