I am planning on getting at least a 1ghz Thunderbird. Is DDR RAM going to be worth it? I do lots of 3d rendering, gaming, and will soon be doing novice animation. Is it worth spending that extra little bit of cash on the DDR stuff? Also what graphics card should I get- the GTS 2 Ultra, Voodoo5 6000, NV20, or one the really powerful Radeons coming out soon. This computer will be done towards Christmas time so I have lots of time to wait for new technology.