Same offer that was on until end of Oct 2008. I have been waiting for this to come back around as I missed it the first time. It has restarted today.
Below is the link for the previous listing for the October offer.http://www.hotukdeals.com/deal/202600/alliance-leicester-100-to-switch-cu/
Basically if you transfer your account you get a £100 credit, provided you meet the not too difficult criteria. You must fund at least £500 per month to the account and you must use their transfer service to switch, and you must also have a direct debit to switch.
Similar to the First Direct offer, except they specify that you must pay either £1500 of deposits or a £10 fee every month.
Please be kind as this is my first post, please add to or edit as necessary.
Edited to add a link for article about this offer.http://www.thisismoney.co.uk/saving-and-banking/article.html?in_article_id=463169&in_page_id=7