After much research and personal debate I'm settling in on going with a surly cross check frame to be built up as a commuter and occasional light touring bike. I have an old saddle and stock wheels/cassette/chain off a road bike that will suffice for now as I need to keep costs down. As for the rest, here is what I'm thinking:

Sram apex F/RD
Sram Force crank/BB (I like it and have heard the apex is heavy and spongy and not really the place to cut corners)
Sram apex brifters
gore cables (again apex cables seem to be lacking)
whatever V brakes I can find
Easton EA 50 stem/drop bar
SPD pedals off old bike

Thoughts? Am I missing anything? Will the frame come with headset or do I need to buy one? I know I need miscellaneous items like bar tape, rack, fenders, bottle cages etc. but as for the build itself am I on the right track? Never done this before so it's a new adventure.

Thanks.