These come to mind in the UK:
Rare Plants (Paul Christian)
http://www.rareplants.co.uk/ Allsorts
Hardy Orchids
http://www.hardyorchids.co.uk/ Allsorts
Richard Manuel richard@orchis.co.uk Ophrys,Orchis,Anacamptis etc
Jeff Hutchings
http://www.lanesidealpines.com/ Allsorts
Pottertons
http://www.pottertons.co.uk/ ?
Maren Talbot
http://www.heritageorchids.co.uk/ Pleiones (too hot?),Spiranthes
Peter Corkhill p.corkhill@daelnet.co.uk Cypripediums (too hot?)
Ian Butterfield, Bourne End, Berkshire Mostly Pleiones.
Alan Dash,Lower Lakes,Suckley Knowle,WR6 5RH Allsorts
...apologies if I've left anyone off...
If all else fails there's the online 'Plant Finder' http://www.rhs.org.uk/rhsplantfinder/plantfinder.asp
Bye-ee
Giles
I don't think you need big orders with these.
If its just an odd plant you want I'm sure someone will be able to pick one up for you and stick it in the post.
An option I use when ordering from abroad is getting bank notes (£'s for you) and send them registered post, as many nurseries
reluctance to trade abroad is the high cost of changing small amounts of foreign currency.