For those of you who are still interested in the D900i deal on play, check this out.
Same deal as posted previously, but using the Current £5 of £50 Play.com voucher, do this:
1) Go via quidco for your 4%
2) Add D900i to basket
3) Add any 1GB SD micro Card (around £4) or a 2GB (around £5-£6)
4) At checkout, include the promo code: VTWMDLHGPQ
5) Total will around £49 (plus you'll also get a few quid back via quidco), so basically your getting SD card thrown in for free, which I reckon is better deal as previous one.