If you don't mind the '3' network and you fancy the Nokia 6280, the Sony K800i or the Motorola vx3 then you could do worse than this deal they are offering.
Reburbished phone (6 of my mates have got them and they are as new)
18 month deal at 15 quid a month for the whole 18 months
2000 texts (after 6 months that goes down to 1000)
600 anyone minutes (after 6 months that goes to 300 (that's still 5 hours)
50 Picture messages
50 Video call minutes
5 quid a month worth of downloads
If that isn't enough, when you recommened a friend you both get 30 quid to either use to pay off your bill or for some of the many downloads, tv or videos on 3.
go to
http://threestore.three.co.uk/clearance.aspx If you do not know anyone on '3' to recommend then PM me and use my number, we then both get 30 quid.
I have signed my kids up for this, it beats my both my daughters orange and my sons pay as you go deals hands down. You can check all of your balances on the phone for free or log on to three and do it there. The only downside is their call centre and some of the staff. otherwise I really like it.