I use a Binatone e3300, it came with 2 handsets and chargers, has worked fine and no problems. I think most of the big stores have them, ours came from asda.
We had problems getting a digital phone to work in our house for some reason. The signals kept fading. So what we did was buy them from Argos and then take them back when they didn't work. After doing this 3 times we finally found one that worked. As it happened it was a BT one and has worked fine for years. So have a look through Argos's catalogue...they have loads. Just make sure when you take them back that you have the original receipt & the packaging isn't torn or battered. Or even cheaper try Asda. They don’t seen to care what you take back or why so long as you have the receipt.