Dear yngndrw,
RS almost certainly stock the type of stuff you want, also Farnell.
RS...
rswww.com
Farnell ? well just Google.
You will be appalled at how much the stuff costs fom UK stockists. It could well be worth importing it from the US, even if you do not need very much.
BTW, Farnell and RS are absolutely top dollar, and better men may know alternatives.
Best wishes,
Martin