Dungeons and Dragons, Magic the Gathering and other game art AD&D MTG

Around the same time I started collecting comics, I was getting into Dungeons and Dragons. I still play with my kids sometimes (real old school rules). A few years ago I decided to start looking for AD&D art to add to my collection. I quickly found out that there is not much out there, or at least not publicly posted or available. When I find a piece now, especially one that hits the right buttons I am as giddy as a school girl(not a pleasant visual image:)). I have been fortunate to find a few pieces but I still hold out hope for a Holy Grail like the original painting to the cover of Player's Handbook (1st edition) or old school Dungeon Master's Guide.