Hi everyone, I've got an early 08 tower that I've kept going with various upgrades. • There's something fishy in HD bay 1 so right now I've got 1TB in bay 2 and 2TB in bay 3 for time machine. • I upgraded from a ATI Radeon HD 2600 XT to a NVIDIA GeForce 8800 GT after that card failed about two years ago. • I have 24 gigs of RAM. 2x2 and 4x4. I'm by no means an expert; I empty my AE cashe and purge PS all the time and neither of those seem to have any effect on performance. I work in animating/design with heavy AE and PS use. With the introduction of clients requesting 4k, my tower is REALLY struggling. I don't want to get a new machine if I don't have to as I have thousands of dollars with of plugins and suites I've purchased through the years. Can anyone give me some advice on what I can upgrade to keep my tower running a little longer? Thanks in advance.