There is a new usergroup for SharePoint that has been set up in the UK.  It's a great forum to exchange ideas, get help and learn about the technology in 2007 SharePoint Server.

To quote the site:

"Welcome to the SharePoint User Group. Established in September 2005, the aim of the group is to discuss Microsoft Sharepoint issues with fellow members. It is our aim to arrange monthly meetings/presentations. Whether you are a Sharepoint developer, user, or are thinking of implementing a Microsoft Sharepoint solution, come and join the fun! "