Was in Zavvi in Ipswich today and they are doing several bundles with the ds at the moment.
Basically for £99.99 you can have any colour DS with Spore Creatures, Sims Apartment Pets 2 or the new Sonic game.
You can have any colour DS with 2 games form a choice of 4 which included Final Fantasy, Purr Pals, a Brain game and a forth one which I can't remember!
For £114.98 you can have any colour DS with a starter pack (RRP £14.99) and ANY DS game except guitar hero on tour.
Not much cheaper than anyone else I know but a better choice of single game than game have at the moment, and the 2 game pack seems like good value, especially if you have a virgin credit card and can get a further 10% off.
You can also get the games stated free when you buy any of the new boxed bundle sets at £120 and £130 (subject to availability!)
And out of interest you can now get force unleashed OR Fifa 09 included with a wii for £179.99 instore too!