I tend to buy
this stuff. Not the cheapest, but it's got all the bits and bobs I need and it works pretty well. It is easier to go a lot cheaper and still get decent stuff though.
__________________
Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?), 1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"