i used krowmark workwear, aint the cheapest but is worth it as the cloths are a good quality, dont get me wrong it aint a fred perry polo but it is def better than some cr@p out there.
the stitching was done to a good standard and most of all very helpful.
set up charges are a pain but once made one order then cheaper from there.
they do a set called 'man pack'. so you can pick a set that suits you ie - 5 polos - 2 jumpers - 1 fleece - 2 trousers.... that sort of thing.
site is v good, soz rubbish with links etc..
give them a call and they sent you this posh booklet with everything in...