I try to refrain from cluttering forums with shopping advice, but I just took a browse of the Robert White website and they're having a clearance sale on a load of acessories and oddments. If you've ever gasped at what Sinar want for a length of 7mm hexagonal rod, now's your chance to pick up those little things you've done without but would like to have if you could only find them at a reasonable price.
Thanks for the heads-up... Should add that it's not just Sinar stuff, but everything from 4x5" down to 35mm... and in all of that I've resisted the temptation of calling up Matt Sampson up there and giving him my credit card number, again!