Most of my ideas come actually from books, which is a little strange at times. I think its probably better to say I draw inspiration from alot of different media, be it books, games, films, tv. It all ends up going the same way though, once I have an idea it gets written down in a black jotter, which then gets left on the bookcase for a few months, then picked up again.
Its amazing how bad some ideas look after not seeing them for months, but it does make the good ones stick out really well!