Sorry taffy - only just seen this post.........
You can get the back to nature backgrounds from the UK - and quite close to you as well.
The place is called Portons garden centre - and it's straight down the A303 from Andover, then left onto the A338 - look for a place called Porton - can't miss the signs to the centre once you're in Porton. The drive should take a little over 35 mins from Andover.
They have those backgrounds in stock - and several of them set up in display tanks, complete with fish. Prices start around £150 and go up.
Portons also have a lot of fish for sale - including a wide variety of cichlids - it's where I get my fish from. The guys are quite friendly and knowledgable, and the fish healthy (although under fed - and watch for ich for a while).
On the down side - they also do reptiles - and are complete arseholes in that department (in a lot of peoples opinion).