Hi and welcome to a lovely part of the world.
Pontrilas timber are very much going and yes they are retail. They have a very good stock of oak and various softwoods, normally at reasonable prices. If you can open an account you will get better deals. I buy virtually all the softwood I need from them, and also oak, and ask to have a bit of a poke around their stocks before you choose your wood and I've always got a reasonable deal.
As far as I can tell they don't have many other hardwoods, never been to ask to be honest, but they do do mdf and ply.
Now you've moved here you will also be in reasonable reach of Ledbury for the regular Pugh sales, can get some bargains there.
http://www.hjpugh.com/
And if you like auctions the regular Nigel Ward
http://www.nigel-ward.co.uk/ ones can be fun, very variable and the odd bargain to get hold of. Not so much wood, though some does come up, but my best was a belt sander for £2, the belts that came with it were worth £30 and it's only just given up the ghost.
Apart from that I've got bits and pieces from the timber centre in Hereford, found them friendly if a little pricey.