Hi Yaheaps. I usually do a search on eBay for this sort of thing. I'm sure the bigger retailers like Suttons and T & M will do them (or similar) but I find that it is usually more economical to buy from small, privately run nurseries who don't have the overheads of the big boys.

Hi Yaheaps and welcome. I'm PM'ing you re the supplier I use. Looks like a good plant.

Have you thought of taking some cuttings?

I'm not sure of the variety but I have a beautiful evergreen cotoneaster in my garden and it is probably the easiest thing to grow from cuttings that I know( I'm a nurseryman)

Here's a link to photo I have on my Flickr site .There's some information about propagation under the photo

http://www.flickr.com/photos/31559373@N00/3554081853/