Just to update, I threw some 700x28c Continental Ultra Gatorskins on the wheels and they roll great and seem to stay in the rims just fine. I'll be purchasing 700x35c tires for the winter/snow.

I also measured the dropout width, and they are in fact wide. I haven't had a problem adjusting my rear wheel though, although I am noticing the difference it's making when checking alignment. I'm the kind of person that does minimal work to keep their bike rolling, so we'll see if it falls apart. I'm having the LBS check the cranks, headset (it feels a little grimy) and install a 17t cog on Friday, while I watch and learn.

I also tightened the cog (didn't need much) and lockring when I first got it, but noticed threads coming out of the hub almost immediately. I switched the the freewheel, so hopefully the fixed side won't be jacked when they put the new, more reasonably geared cog on. I am loving this bike! I am definitely a little more stretched out than I'm used to, but I've only ever ridden the Kilo TT that was too small and a trek 4300 mountain bike that is much more relaxed, so I don't even know if it's bad.

I've been bugging my buddies to go on rides with me whenever I get the chance. I definitely understand the singlespeed/fixed gear trend. I get a much better workout and find myself going much faster than when I ride a geared bike. I also really enjoy taking it out early in the morning and riding it silently through the city.