How about the Open University. I've been studying with them for a couple of years now and love it, and while you have to get down to the work yourself, there's a good online community (on an intranet thingumy - I'm a computer numpty really so don't know the proper terminology) you can get support, inspiration and motivation from. If you don't want to do a full-length (30-32 week) course, they do loads of 10 week courses to give you a taster. It might be worth a go, and it'll get the old grey matter doing its splodgy tickings again. Just an idea.