I am based in West Wales but am willing to travel, i am just sending out enquiries at the moment and a few places have already been recommended but the more i get the better!!
Thanks in advance
Another vote for Jason Webb (but he is in Kent so that's quite a trek from West Wales) and I'd also say Janet George in Kidderminster (she posts on here) http://www.irish-draught.net/about-us.html. If she were closer I'd be sending my 3 year old to her without hesitation.
Work on getting the basics established by a competent 'breaking' pro and then do the dressage fine tuning after.