Samsung U800 Soul B mobile, in silver, on the Orange network. Currently £59.98 from Prepaymania, plus a £10 topup required (free delivery). Mine's just arrived and the big plus is that it seems to be sim-unlocked (it works on O2 anyway). No guarantees, but the last Samsung I bought from Prepaymania also worked on O2 straight out of the box. No sign that this is a refurb or anything, mine appears to be completely new, sealed in the original retail box, with all accessories. Very stylish phone for this money!
Dimensions: 111 x 46 x 9.9 mm
Screen: 2 inch, 16 million colours, 240 x 320 pixels
3 Mega Pixel camera, 2048 x 1536 pixels, 4x Digital Zoom, Flash
1GB onboard memory, expandable with microSD
MP3/AAC/AAC + Player
WAP 2.0 / XHTML
Prepaymania are a genuine company and not dodgy, though I bought a phone from them last year which developed a charging fault after 7 months and had a hell of a time getting them to replace under warranty (several calls and threats of legal action required!). But in fairness they coughed up in the end.