I can't afford a new computer, and I have a mac pro, which I hope is upgradable. Here are the Specs: Mac Pro:2008 Processor Two 2.8 GHz Quad-Core Intel Xeo Memory 4GB (4 1GB sticks) Graphics Gard: Nvidia GeForce 8800 GT 512MB Hard Drive 750GB 7200-rpm Serial ATA 3GB I know I would need to buy a copy of Snow Leopard before I could upgrade to newer Operating systems. The computer is quite a bit more responsive than my mid 2010 macbook pro laptop (It has seen quite a bit more use, and the battery and graphics card seem to be going). Many games and some programs will not work without this upgrade. So, is it feasible to upgrade this machine (hardware, software, and cost-effectively)? I'm not looking for anything amazing. I'm just looking to see if I could update it to something like a 2012+ capabilities? If so, what would need to be replaced besides graphics card and upgrading the graphics card? Thanks all.