I use an Omrom one but I got through
Fitbug - FEEL GREAT, STAY IN SHAPE, LOSE WEIGHT - UK you sign up with them and each week they set you targets. It's really good & keeps me focussed (most of the time LOL). You can also enter what you've eaten each day & they work out with the number of steps you're doing whether you'll gain or lose weight. This is my main way of exercising as I'm not a gym bunny
They're just in the process of updating their website, but worth a look.
It's the same pedometer and website that they use on Diet Doctors if you've seen that.