I was in Boots(large store, Eldon Square, Newcastle yesterday and in the photo section they had a number of phones one of which was the Sony Ericsson K750i On Vodafone Prepay for £60 (Strictly one per customer)
Excelent price, with no hassle about vouchers code or anything else, just walk up to the counter and pay for a very decent phone.
This is instore only and looks like it's now a clerence item so stock may vary.
Hope this helps someone.
2.0-megapixel camera - Autofocus - 4X zoom
Colour Display: LCD 262,144 - 176x220 - pixels
Media Player MP3/MPEG4
Data & Connectivity
Bluetooth wireless technology
Memory Stick Duo
Java games & applications