GameCube NR discs, NPDP cartridges, Dreamcast Silvers or GD ROMS, betas, prototypes

Hi,
Although I do not post here alot, I have been a member for some time now. At the moment I am searching for GameCube and Dreamcast builds/prototypes/betas/review copies. If you have any that you are willing to sell, please reply and/or p.m. me. I am an active member on EBay if any potential seller would prefer to sell that way. I am a long time member on other forums as well but I mostly use p.m. systems for communication in order to purchase items in for sale threads, as I am a collector of the video game agenda.