I'm an amateur graphics designer, and I model in 3D as well. In particular I use Google SketchUp, and Photoshop CS2. I've noticed a good amount of lag in these programs compared to other unit's I have used, and wonder if it's the graphics card to blame. I recently bumped the memory to 1GB a few weeks ago, but the same lag is there. I know the dual 500MHz G4's arent the best, but It seems like I should still be seeing a better performance out of my computer. Do you think its the graphics card holding the render speeds back? I know its a measly 16MB of VRAM, but I dont want to pour money into a new card just to have the same amount of lag in the end. All input appreciated. Thanks!