Shame you'll miss the CBW at St Saturnin. If you haven't booked already, I'd seriously suggest getting there on Thursday so you have the entire Friday there to muck around and chill out.
Get to LM town centre EARLY for the driver's parade. Seriously. It's great though, I watched the parade last year then spent a few hours afterwards getting paralytic in town whilst trying to drunk call Lexx, then stumbled back to my tent after catching up with various other groups of drunken folks trying to carry each other back their tents, lost my decent Oakley glasses and finally found my tent about 4AM. One of the best nights I've ever had at LM!