Hi everyone, This is my first time posting in here... anyways, I have a Mac pro (early 2008) with a Nvidia GeForce GT 120, I wanted to upgrade it. I don't do any gaming on it i use it mostly for work, I am a 3D artist, I mostly use programs such Maya, 3Ds Max (bootcamp) photoshop, Final Cut and others, I'm often switching between multiple programs but my computer can't handle it and it crashes. I just bought more memory for it, i only had 4gb and I got 8gb more. Any suggestions for a better graphics card? or my issue is mostly memory?