Last night The Wife and I signed up for Tough Mudder in 2013. Northampton, 5th May. We're in as a team of 8 so far but it'll likely be closer to 12 I would have thought.
Quite excited. For most of the people running with us, it will be a first obstacle run. The Wife has just signed up with the local CrossFit club that opened a few months ago, Sarum CrossFit. This will be the basis for her training, interspersed with some running. She won't let me train her, we've already been down that road :-)
As for me, it'll be business as usual :-) Stayed tuned for more updates as we go along!