Hi guys. Just looking for some expertise and guidance on doing a Mac Pro upgrade. I've seen quite a few threads, but am just trying to sort through the muck and work out all the ins and outs of going through this. My machine is a Mac Pro 1.1, 2 x 2.66 Dual Core with only 4gb of memory and a Radeon x1900. I work in tv and use my machine for scopes using ScopeBox. I was using a much newer MBP until it recently died and I was forced to pull my tower out of storage. All is working fine, except ScopeBox won't show me weighted scopes because that GPU doesn't support the OpenGL features that are needed to run those modes. This is a 2 parter. First, I want to find a GPU that will work with this setup as is and give me those extra modes that I need just by slotting in the card. Secondly, after looking at all the upgrade threads, I want to have a go at supercharging this thing. As far as the GPU, I have no idea so any input would be appreciated. As far as supercharging goes, one of my biggest concerns is the cooling. This thing, as I'm sure y'all know, runs really hot. The fans are always running. Is there any way to add a better cooling system? So far, I'm looking at a pair of Xeon x5365s as they seem to be the most powerful CPUs I can put in this machine. I already have a SSD running my OS, which was a huge improvement back when I did it. I'm looking at throwing in 32gb of memory, or more if it can take it, not sure of the limits. Also, probably going to get a Blackmagic Decklink card to replace my Matrox MXO2 Mini Max. Moving my SSD to one of the optical bays and making a 4 drive RAID is another thought. That's my starting point. I've got a very basic idea of what's needed, but I'll be doing this on the weekends between jobs, so I have to do it in manageable stages that will leave my system working through the week. As I said, I've seen a number of threads which were helpful in pointing me in the right direction, but I just need to be overly cautious, as this machine is helping pay the bills, so I don't want to race off half cocked and mess something up because I didn't ask a question. Thanks heaps for the help.