I wouldn't have thought to look at the Jessops site when trying to find the best price, but I was very pleasantly surprised by the price and the service I received. They are now on my list of sites to buy from.
I have been on Orange for several years an always been very happy with them. However, I have found that since they paired up with the T Mobile network I actually loose signal more often when on calls. I hope they get back on top of this soon.