Please don't laugh ... but Wilkinsons do some decent ones - complete with mounts in them too.
I've used them a few times and they are decent stuff (both wood and metal ones).
God I sound like a cheapskate ... in my last couple of posts I have recommended shopping at Wilkos and also replacing a £100 desktop studio with 2 £3.99 lights from Argos !!
Oh well, more money towards the massive Sigma lens!!!!
Anth.