Sounds a bit like the dilema I had a few years ago. but almost an oposite situation. I studied IT, communications and electronics at College, I used to really enjoy it and when I managed to turn it in to a job with a decent sized IT company I used to go home most days feeling that I had achieved something, fixed a problem, designed a good solution etc. but after a few years I felt I had seen most of the senarios in the field and that my brain was getting used to running on half power. My solution was to pick up a college prospectus, tear out all the IT related courses and ore or less blind folded stuck my finger on a random page and chose a course to do on a saturday, I now have a certificate in Massage to go with all my IT ones, not often used but was amasing how good it was to learn a new skill. I then, through doing a first aid at work course joined a voluntry first aid service and have really enjoyed spending one evening a week learning advanced first aid skills, ambulance bits and pieces and also putting them in to practice at various events etc. it was all new to me and really put my brain through its paces trying to learn Anatomy and Physiology etc. I still work for an IT/comms company and don't feel very challenged most days but doing the first aid stuff does get my brain some exercise, while its nothing like the amount of knowledge and skill you have its enough to get mine working hard when we get a job. Id suggest finding a local college prospectus and seeing what one day courses they do, might not give you anything very indept but may give you an insight in to another subject and meet new people. or if you fancy some IT, how about a job swap?