Hmm yeah,
Chris King ThreadFit T47-24i Bottom Bracket
Bbinfinite T47-Internal Shimano Bottom Brackets (Just sucks wiht import costs due to American))
Wheels Manafacturing T47 ABEC-3 BB for 24mm (Shimano) Cranks (I still have a set of 2437 hambini bearings)
White Industries Internal Bottom Bracket - T47- (No sleeve tho)
But then theres also stuff like Rotor, Token, C-bear.
So many options. I've heard great things about Chris King BB's but pretty expensive...