I am working on the brand new Macbook Pro (system - 2gb ram and graphics - 256mb ram) and I am wondering if there is a way to upgrade the RAM on my graphics card. I know you can update your ram for your system and apple gives you the option to upgrade the graphics card ram on their web site, but I need to know if i can upgrade the ram that works with my graphics (upgrade my 256 MB to a 512 or a 1gb ram for graphics only) by myself and buy the ram chip myself.