The cheapest source for X-10 products in the UK is Homebase (the DIY store)!

They stock a limited range of "Home Control" brand products;

PC Home Control Kit £70.00 ( ? )
(software, CM11U, LM12U & AM12U)

Timer Home Control Kit £62.00 (£70.00)
(Mini Timer, LM12U & AM12U)

Remote Home Control Kit £62.00 (£70.00)
(RF Remote, LM12U & AM12U)

Lamp Module (LM12U) £26.99

Appliance Module (AM12U) £26.99

Non of the boxes are marked as being X-10 products, but they definetly are.

I think these prices are only until 2nd October, then they go up to the figures in the brackets.

Last week I brought the PC & Timer Kits as my first X-10 products & now I've got the bug! Now where can I get a discount on bulk purchase of wall switches!! ;-)