I have a stock early 2007 Mac Pro (8GB RAM, 2 x NVIDIA GeForce 7300 GT (256 MB). It has a RAID0 bootdrive and is running Lion. I've had it for >5years and I really love it.
However, recent attempts to do stuff, including running WebGL demos, has led to a realisation that its actually now quite an old machine. This isn't a problem for me day-to-day - its still a monster able to rip CDs, play DVDs, run a Windows VM simultaneously without breaking a sweat - but as a developer I'd like to stay abreast of current tech like WebGL and whatever other else.
I'm not prepared to spend thousands on a newer machine, mine is just fine for day-to-day purposes, but I would like to soup it up. Upgrading GPUs has been mentioned, but I was wondering if other parts of the system could be swapped out with newer ones.
Does anyone have any experience of upgrading older Mac Pros?