These seem to be plenty of good broadband deals at the moment, and Nildram have added another with a half priced 2Mbps broadband connection.

Customers signing the Broadband 2 service until the 31st July will only pay £12.99 a month until 31st October, when the normal price of £25.99 will apply as it's a subject to a six month contract.
All the usual extras are included, such as 100MB webspace, 100MB email storage with 5 accounts, anti-virus and anti-spam controls, a nice extra which a lot of ISP's omit is newsgroup access. A word of note it that this connection is subject to a fair usage quota of 50GB a month during peak times, off peak data is not included.

New users of broadband will have to pay the standard £58.75 activation fee, but those already with an ADSL line can migrate for free. Existing Nildram customers can regrade for a one off  £12.93 charge.

Details at Nildram.