Ok, the 36's are gone, and maybe the 41's...so yeah, the 38's are still available. Plus as i said, think i've got some more of the silver ones, but they're uncut...probably around 60cm?!

Plus, on the caliper front, you're in luck...as i've just gone brake-less on both of my bikes. So, i have one pretty much brand new ultegra brake (still has a black crosstop lever with white outer attached) £20 for the brake, £25 with lever and cable. The other is a fairly new dura-ace (again, has a lever and cable; silver crosstop lever, with silver steel nokon cable) £30 for the brake, £40 with lever and cable. I may have a couple of cheaper ones though if needed, i can check my bits box(es)?!