i don't see a problem using a nice road frame for a fixed conversion. however, it seems a bit wrong to take a fully functional geared bike in nice condition and convert it. a while back i picked up a really nice trek 400 elance with the thought of converting it, but once i saw how great of shape it was in i changed my mind. it was also a bit small. now a friend of mine is riding it as a geared bike and i'm really happy i didn't convert it.

my conversions have been with older bikes that need a second lease on life. first it was an older trek and now i'm riding an old mercian. i'm not crazy about having the shifter mounts and the cable guides on there, but it's a nice fixed ride. to me it seems to make more sense to convert and old road frame than to ride a track bike on the street. that's just my opinion though.....