Flake if you check back you'll see that the £4.99 battery I mentioned was for my 400D (NB-2LH 7DayShop)
All I can see at Play.com regarding the LP-E6 is
THIS ONE at £61.41.
There are plenty of non chipped LP-E6 compatibles for the 7D around but like we've established they don't 'speak' to the camera.Also they come with their own charger as they can't be charged with the supplied Canon one.