..you're gona get burned asking the very very VAGUE and GENERAL questions you're asking. You don't seem to even know much about what you want, you're asking us to build you a cool fixie that looks pretty.
I'm not being harsh, cos i'm in the process of building a bike right now, and i don't know all that much, but i went and read a bunch of stuff BEFORE asking.
True, i've just found the thread on building and i've started reading the sheldonbrown links.