Hey guys, I'm new to the forums and I registered to ask this question. I'm thinking about purchasing an older Mac Pro 1,1 and upgrading the crap out of it. lol. I need some advice. I currently have a macbook pro 15" late 2012 and an Imac 27" mid 2011. My Imac has an I5 processor, upgraded to 16GB DDR3 and a solid state drive. Lately its begun to slow down a little and I've been thinking about buying a mac pro 1,1 to replace it. Here are my questions... 1. I found a bunch of 1,1's on craigslist I can probably trade even with for my current imac and i'm wondering, can the processors be traded out for any intel based processor? For instance I was thinking about 2 core I7 quads in the $150 range each. Would this work? 2. I build custom gaming computers all the time and I definitely know my way around a motherboard, so keeping that in mind... is it pretty easy to swap out processors or is there a special process / anything to worry about. 3. I would like to put 16GB DDR3 super fast speed in it. I assume this would work? I think they have DDR3 stock. 4. GRAPHICS. This is my most worrisome area. What is a really good gaming card that would work reliably with this machine? I have a GTX 650 TI in my gaming PC, would it operate properly in this? If not, whats a great card that would work in this thing? 5. Will a SATA 3 SSD work for hard drive replacement? Any other suggestions or also let me know if I'm an idiot and this is a horrible idea. I want to beast it out to 2013 specs, if that isn't possible, thats ok, I'd rather know before I buy it. haha. Pre-thanks for the help.