Just got this offer by email from CDWow. Now normally, I don't post them as their sales are sometimes horrendous, but I've had a check of some of the prices here and some are favourable.
For example, the Artic Monkey's maximum CD is only £3.75, which you should be able to get 50p - £1 off with vouchers - this is a fiver everywhere else. Same story with the Fall Out Boy CD.
As for the DVDs, I've spotted the Foos Live DVD - you could get this for £7.99 with vouchers/links and this one is £11 everywhere else.
Now I'm not saying they are all good prices (There's a Band of Brothers DVD set for £57.99 - what were they thinking!) But it's definitley worth a look and a price compare to see if you can find a bargain.
Remember to check Gary_Rip's CDwow discount thread to make sure you get further discount on these items.