Phones4U have the refurbished Samsung E330 on their website for £49.95 on Vodafone pay as you go. If you purchase via QuidCo.com you'll get £5 cashback, meaning you're paying just £44.95 for the phone.
Vodafone currently have various promotional offers on their tariffs. They include free x-net calls and texts all weekend if you top-up with £5 during the week (text a spectial number to apply), talk for 3 minutes and pay for just 3 with stop the clock and 10% extra credit on top-ups over £15.
The feature-packed Samsung E330 cameraphone has dual 65,000 colour screens, a built-in camera and an internal antenna, which makes the phone a pleasure to hold and use. The built-in VGA camera will enable you to keep a trace of your best moments and with 4x digital zoom you can take pictures of friends from a distance or even in low light conditions. There's also MMS, voice recording, games, screensavers and a large 9 MB memory for storing polyphonic ringtones and Java games.