Virgin Mobile have a sale on at the minute..some good deals some not so good.
Although quite old compared to some of their newer phones this Sony Ericsson still represents good value for money.Comes complete with all the usual retail accessories including a 512mb memory card and cracking set of headphones.
The get the above price... log into your virgin mobile account,click on the "Get upgrade" box under the Red is for Rewards banner on the bottom right of screen then click on the "Buy a phone" box at the bottom of the next screen.This then takes you to the Pay as you go phones page where you can select the SE phone at £10 less than normal price.Incidentally i also got the option of another £10 off as an upgrade reward bringing the price down even further but have been a customer for quite a while.
If you're not already a Virgin Mobile customer then just register one of the free simcards they always seems to send out and you can still get the above price.
Don't forget that there's also £8 for going through Quidco too.
Just as a comparison the same phone on the O2 website is currently £69.99 and from CPW is £59.99 with a mandatory £10 airtime purchase on top.
Hope this is of use to some of you.