For £29.26 per month, get an iPhone 4 (pay one off charge of £117.77 for the phone) and get 300 minutes, unlimited texts, 500MB data and a free option of either unlimited calls to landlines (UK), an extra 100 free mins or My Europe Extra (haven't looked into what this entails, but the title offers some hint).
I took on this deal when they were offering double the minutes, however the deal is still really good because even though it's a 2 year contract, you can upgrade after 12 months. AND, though it's a business tariff, individuals without a business can take up this offer.
Other tariffs inc:
34.26 pm for 600 mins and 750 mb data (phone costs £92.28) *remainder is the same as 29.26 tarriff
44.26 pm for 1200 mins and 750MB data (phone costs £33.51 on this tarriff).