what u mean no contract?
i live in the uk and we have contract phones where u pay say £25 a month n u get so many free minutes to call, and soo many free texts a month etc, they started doing it now with MMS messages and free wap/internet
if your not rich enough for that, or if u dont use a phone too often we have PAYG phones, Pay As You Go phones, these can be bought from a shop with a sim card in the box. you just buy top up cards when u run out of credit.
and 02 have some killer deals, 300 free texts as long as you top up £10 a month? pretty good. of course you dont have to top up every month, hell if u use it that infrequently like my mum u neednt top up once a year even
you can do everything on a PAYG phone as u can do on a contract phone, except the contract phone will just continue to rack up the bills, whereas the PAYG will stop you from calling/txting untill you top up, u can still recieve txts and calls though