Great deal @ OSPS for the white W810i on Orange's Canary 30 Tariff (200 mins/75 texts) @ £30p/m. Cheapest I've seen for the white W810i. Just ordered one for myself.
Same deal available on black and you can get 10 months free line rental on the clearance model.
Term cost is £90. Going via Quidco, gets you an additional £42.50, which brings this down to £47.50. Works out to a ridculous £3.96 per month.
Note that Quidco cashback reverts back £37.50 @ OSPS from Wednesday onwards.
I've just finished a 12 month contract with OSPS and got all my cashback no problems and can't recommend them highly enough. Don't forget to cancel the 3 month insurance and the £1.99 itemised billing.