Comet have the Panasonic KX-TG732 series cordless phones on special offer in either the Triple or Quad packs. The triple are £59.99 and the Quad £79.99 but they have a 10% of code - 10PANA which reduces the prices to £53.99 and £71.99 respectively. 3% Quidco may also be available although it does say that this may not be validated if you use another voucher code.
I bought the Quad pack yesterday and have been impressed at how easy they were to setup. The menu system is very intuitive and the phones are pre-registered to the base station. The build quality seems solid and they look more attractive than most phones (in my view). They get great reviews from users. I might have been tempted by the 8424s at £79.99 from Tesco had they been available but they were sold out.