I bought a cubicle from EGG Ceramic a few doors up from Homeprof.
A couple of bits of advice I wish I had known before I bought;
1 don't assume you will get a cubicle that will fit your existing shower base like I did, I ended up buying a new base as well.
2 The shower cubicles do not come with instructions in the box nor on line. It is assumed that you or your plumber will know how to put it together.
On the plus side I got a decent glass quadrant cubicle for about £75 and a base for about £25.