Good call replacing the Trek frame, it's only a matter of time until in breaks. The Octane One is a really nice frame, especially for the price.
Here's mine after installing some NS bars:
As for wheels, if you're not set on a single speed specific hub, Azonic Outlaws are a good, solid choice that isn't too heavy or expensive. You'll need a 12mm - 10mm stepdown axle, but the wheels are great.