Existing M&S credit and store cardholders earn up to 2,000 M&S points worth £20 when you open an Everyday Savings Account and have money in it on 1 October 2009. You get an M&S point for every £5 up to £10K, as follows;
£1,000 - 200 M&S points
£5,000 - 1,000 M&S points
£10,000 or more - 2,000 M&S points
Interest credited monthly. Rubbish interest rate, but you only need to have the cash in there for one day to get the £20 in points (added to your M&S points account by 1/11/09).
Apply via link, or by phone on 0808 001 3131 quoting GD01 (recommend web - very difficult to get an answer on phone!).