Where will you be on April 17th 2012? If you'll be anywhere near the south west of England, can I recommend you make your evening plans to be attending Forcewest?
There's a presentation from Simon Parker who is presenting his Surf Life Saving Salesforce.com implementation case study, followed by an open Q&A. The night then normally evolves into an eruption of conversation and debate about almost all technologies.
I'll also point out that there is a fair tab behind the bar, courtesy of Desynit, so if you're in good time you can enjoy a free pint to help break the ice with your fellow Salesforce.com users.