I bought one of the remaining '07 Rush Hour's from my LBS and got a good discounted price. I use it as my commuter exclusively (25 miles a day) and enjoy it verily. The One Way was pretty, but I don't need all the marketable "commuter gear" like fenders et al. Also, the gearing was too low for me. I will actually be increasing mine soon.
No experience with how this will work for you as an errand goer - my city is simply not laid out to accommodate a 100% car-less lifestyle. Having a family and a 200lb mastiff also complicates that a bit - lol.