I just went to Zavvi Tottenahm Court Road (London) and under a Sale panel they had a bundle Nintendo DS Lite + 1 game to choose between : Brain Training, More Brain Training, Sight Training, Big brain academy and a fifth one I does not remember the name (I did took a picture with my phone, but I cannot read the name, sorry).
The DS lite can be of any color (if they have stocks...): black, white, silver, pink, ice blue, red or green.
They also offer a DS lite + any game + an accessory pack (not sure what is it) for £110.
I don't know i it is a national offer. I am not even sure if it is a real 'sale' or just a normal offer at zavvi, but most other shops offer similar bundles for £10 more. May not be an hot deal, but still is the best price I have found this week and can still help someone.
Please, if you vote it cold, say where you do find something similar cheaper or a single brand new DS lite for less than £100, because I really am interested ;-)
(I have missed the John Lewis offer 10 days ago, which was £10 less, and have been grumpy since ;-) )
edit 1: the fifth game is '42 All time classics'
edit 2: I asked zavvi, and NO student discount on hardware, only on games