I finally sold my road bike, freeing up the $ to buy a cyclocross bike. I've been leaning towards getting a singlespeed--probably the Bianchi San Jose or the IRO Rob Roy. My budget is about $600. If I plan on doing a lot of road riding on the bike (in addition to taking it off-road), would I be crazy going with a singlespeed instead of waiting for a used geared cx bike in my price range to show up on craigslist? I won't use it to commute--I have a folding bike for that--but I like to do at least a couple of longer rides during the week for fun (~20 miles one or two weekdays and something 30-40ish on the weekends). I won't be racing it for now, but might be interested in doing so in the future. Thoughts?
Also, the gearing on the Rob Roy seems kind of high--46/18 is the lowest you can get according to the web order form. Does anyone know if IRO offers any other options besides the ones listed on the website? Another random question--does anyone know the stock stem length on the 52cm San Jose?