Orange have the LG KG800 "Chocolate Phone" on their website for just £149.99 including £20 free airtime. Unfortunately you have to buy £10 airtime when you make any purchase there, so to make things less confusing I'll start again... you pay £159.99 and get the phone and £30 airtime. So the effective phone cost (after airtime has been used) is just £129.99. Get £5 cashback when you purchase through QuidCo, bringing the cost of the KG800 itself down to just £124.99.
The LG KG800 is a smooth, slider phone and looks like a chocolate bar. The external keys are actually invisible, they light up red when ready to use. It has 128 MB internal memory with an MP3 player and MPEG4 video player. The KG800 also has Bluetooth and a 1.3 megapixel camera with flash and video record.