I am a current Three user, unfortunately some may say. I have been assessing my upgrade options and was offered the package of a Nokia 6500 Slide in either silver or black on a 12 month contract with 500 minutes and unlimited texts for £25 a month with upgrade available after 9 months. The handset was free
I don't know if this offer is available for new Three customers. The Three store online only appears to offer 18 month contracts.
Play.com offers the same phone sim free for £199.99. The total cost over a 12 month period for this phone is £250.