They're cheaper than anyone else I know in the UK, even with P&P added, seem to be very reliable, and have a lot of VERY satisfied customers. Check out things like their pack of 100 vinyl CD sleeves for about two quid, 100 DVD-R with cases for 30 quid, and so on. I just wish I'd known of them earlier, since I paid well over their prices for the last couple of batches of CD-Rs.
I'm not associated with them in any way, except as a satisfied customer, just think it's worth bringing them to the attention of anyone in the UK that uses this stuff.
Later: Forgot to say that the site comes up with the company name, which is SVP