Redreptiles Selling captive bred Boas. Based in East Anglia, Kelly & Drew have an impressive website with nice clear shots of the snakes up for sale. The website has a lot of interesting information and even a video of a Boa giving birth to a litter. I got a Hog Island Boa from them and am very happy with it (pictured below).
SnakeBreeder.com Selling captive bred Corn snakes. Based in the County Durham area, Stephen produces some very nice corns and feedback says that the after sales service is very good. If your looking for a good corn snake or two to show off then give this one a go first. Delivery only to mainland UK at this time. Also on this site are some interesting furry pets.
Iconboas.com Specialising in Boa's and their morphs. definately worth a look and they will consider payment plans. This is a well constructed website with some stunning photo's of some beutiful snakes.
If you wish to add a breeder who goes above and beyond what is expected, then please feel free to contact me, i am happy to advertise breeders who offer great service and quality animals (snakes). Thanks, Phil.