for durability/looks where cost is not an issue:
cranks: campy record pista. they're absolutely amazing in every way imaginable.
rims: cxp33, or open pro. although i think my next wheelset will be with sun venus aero rims, just to try them out.
headset: hatta NJS.
pedals: MKS sylvan.
where cost is a determining factor:
cranks: sugino 75 just as tough (if not tougher than the campys it's all pretty much the same at that level though)
BB: shimano UN53
hubs: phil. cannot go wrong with spending a little extra where it counts, but if you really want to save some, the surlys are just fine...i just keep meeting people who are like "yeah, i bought the surlys, but i really wanted phils, so i'm gonna upgrade when i have the money." if you want phils, save money for a little longer and sacrifice riding the bike for that much longer and get the phils. they're worth it. to me, it's not worth comprimising something if you're not gonna be happy with the end product.
rims: same as above
headset: tange levin (the $24.95 one is pretty sweet).
pedals: MKS sylvan. $20-$30. can't go wrong for the quality.
get the bike you want.