I don't know Kathy, but she has an good read about happiness initiated by Robert's recent announcement and goals to hang with happy folks.  The mirror neurons + emotional contagion that Kathy explains are fascinating, and made me wonder how they promote/impact group think and the power of groups.  Adding it to the list to read up on. 

Personally, I've trying to be content because I think it's a path to happiness.  I figure once I'm content, things won't bother (as much) and I can focus on happiness.  One of the ways I found to be content is to find people that are happy where they are, but trying to become better in what they do (career or life).  That delicate balance lets them absorb success and failure with an even keel. 

Robert, I think surrounding yourself with people that are happy is a good idea.