Need a reasonable, sealed BB for 75's

hamster thanks guys, but my cranks aren't actually the 75s, they're the RD2 (which came stock on the 06 langster). i wonder how much these cranks differ from the 75s, chainline wise. they're JIS taper so campy is out.
after a bit of research i think that the stronglight JD400 (107mm spindle) is the way forward, but can't seem to find any british sources for them. perhaps will can sort me out

cheers
dan

Shimano do a few 107mm JIS taper BBs which should sort you out. UN53 is a bit cheaper, but good. UN73 is a bit lighter. By the way, the 110mm Shimano BBs give the same chainline, as the extra 3mm is all on the non-drive side.