Rather go to EMF camp[1] it's cheaper and it's a 3 day camp/talk everything you ever wanted.
EMF Camp sounds like fun, but it doesn't look like they're targeting the get-your-employer-to-pay market. By and large, corporate training doesn't run over the weekend and expect attendees to bring their own camping and cooking equipment! [3]
[1] http://www.devoxx.co.uk/ [2] http://www.jbinternational.co.uk/course/325/java-secure-codi... [3] http://wiki.emfcamp.org/wiki/Packing_List
However I have to pay out of my own pocket regardless and that's way more fun anyway.