First Build

Hello,

    Many thanks for the help over the past 2 years. I love you guys! Apart from getting excited about the Hatton fight this weekend and the possibility of Miguel Cotto battering Mayweather next year I've flogged the Fuji and been busy buying bits and pieces 

for my first build. I've not had a massive amount of cash but didn't skimp on the essentials (cheers for teh tips Andy). So far i've horded the folowing...
Sugino 75 Crank and chainring
Open Pro's laced to Miche high flange (ta Arup! Great build)
Nitto Pearl stem and Nitto Drops (ta Will Hubjub)
Surly cog
Using me old spds
IRO Angus (would love something a bit special but here's where the chedderz dried up but It looks gorgeous so happy days)
Using my old tubes adn tryes although waiting for them white rubinos this summer
Here is where I'm up to. So really I need to grab a chain, seat and post, BB and headset... the last two I could use a heads up on.
Can anyone recommend a decent, reasonable priced BB and headset out there at the moment? Shit that was long winded, sorry about that! Also, what chains would you guys recommend? This is my first build so I expect to be on here a lot more than I have been over the last year.

Many thanks in advance.