Good luck with the purchase, now that you've decided on a new single speed. I was going to agree with Slim and recommend the Jamis Sport Coda. It's a very fine bike and speeds give you more flexibility, but I'm not an SS guy. When I want to feel better about myself, I rationalize that Pittsburgh is a very hilly city to ride a single-speed bike in, but I'm probably just too weak for it! In any case, if you have your heart set on the SS, go for it. One thing I'll bet: if you fall in love with riding like a lot of folks on this forum, you'll be writing to ask us about your next bike purchase in oh, let's say 6 months max.!

Happy trails!