I will be going to Europe for around 6 weeks this summer, and I will be needing a cellphone. Last year, when I went for the world cup, I paid an extra $6 for the month I was there to Cingular, which reduced the roaming rates quite a bit, but they were still really high, around $1 per minute and 50 cents a text message. Instead of paying throgh the nose to Cingular, I would like to get my phone unlocked (it is quad band gsm phone) and buy a pre-paid SIM card when I arrive. I've been looking through various websites of european carriers, but I am still left with several questions. First of all, I will be in the UK for the majority of the time (3 weeks), but I will be using the phone mostly in France (two weeks), as I am staying with a friend and not with family. The last week will be spent in greece. I need to find a carrier that covers at least the UK and France. Obviously, I would like this to be as cheap as possible, but I would also like the best coverage I can get. Since I can't just walk into a store and start asking questions, I'm coming to you guys for help. Basically, I'd like to know which company would have cheap pre-paid coverage in both the UK and France, and what the ease level is in buying a pre-paid SIM (I've only ever been on contracts before). Thanks!