Where do I start?

hey H2O...
were you the guy i talk to at the shop today?? He told me exactly the same thing....

"Riding fixed will improve your pedalling technique and cadence, so the chances are you'll end up going faster on your road bike too if you ride fixed for a while. What happened to me at any rate"

I guess it would be fun... to build my own....I have all the tools anyway...

hate making hard decisions...

Not unless the shop does a line in financial journalism on the side, no!

Go with your gut. If you can afford the project and you think it'll be fun, do it, don't sweat the pennies so much. If you'd rather just get the thing and get out riding, buy the Langster.