Credit goes to MSE - signed up yesterday as it's an amazing deal.
Line Rental - £132 for the year (works out to £11 per month) - includes weekend calls and free caller display
Unlimited broadband - £2.50 a month
P and P for router - £6
Follow the link above and enter code EEHBB10 to get a £100 Amazon voucher (emailed within 90 days).
Provided you don't need a new line, factor in the voucher and this works out to just £5.67 per month!
Deal ends 31/12/2014