Hey guys... I'm looking into getting a Surly Steamroller frame to build up. I want to use it mainly as a commuter/fun ride, but also for a little light trail riding (I come from a single speed MTB background). Now the frame would cost me about $340 (I work at a shop ), but aside from that I'm afraid I'm not too familiar with fixed/ss parts.

So here is my query- what are parts you would suggest to build this up (fairly) cheaply? Weight isn't really a concern, I mainly want cheap/durable stuff. My only specification is that I want a flip-flop rear hub (fixed for normal riding, SS for any trail riding).

What I'd need are- Wheelset, bottom bracket, headset, stem, and cranks. Everything else I could probably scrounge up fairly easily without much advice.

Thanks!