I just did some upgrades to my 2009 Mac Pro quad-core 2.66. I upgraded the memory to 16gb, video card to radeon 5770 (formally geforce 120), and an OWC 240GB SSD HD. I'm a working photographer and use Canon 5D MK II's along with a Hasselblad H4D 40. The softwares I use most are Photoshop CS5, Aperture 3, and Phocus (Hasselblad software). I intend to use this computer everyday for at least three years. Any other mods that you can think of that can make a difference? Thanks!