Latest Plusnet unlimited fibre deal offers 38-40Mb for 18 months for £5 per month (for the full term of the contract, none of this reduced rate for the first 6 months malarky!)
£5 per month for 18 months
£17.99 line rental (less if you pay the line rentral saver - 12m upfront)
£6.99 delivery of the 'free router'
No setup fee (waived £50 activation cost)
Adds up to £420.81
Call plans are additional, starting at £4/mth for Evenings and Weekends
I'm an existing ADSL customer, mid-contract. Typically, they can't offer me the above as it's for new customers only (grrr!) - They could only offer me £8.50/mth, apparently.