I spotted a few good prices for Boxsets on Zavvi,even better if using the £1 off code via SMS.
Clangers/Bagpuss/Ivor The Engine £2.85 if using £1 off code.
The Marx Brothers Collection [Box Set] £4.45 if using £1 off code.
Dirty Sanchez - Series 1 - 3 + Nike DVD £5.85 if using £1 off code.
Kung Fu - The Complete First Season [Box Set] £5.85 if using £1 off code.
All prices include delivery too.
Probably loads more but i already have these and paid at least £5 more for each Boxset.
Hope this helps someone.