Here's March, heading off at a tangent, again! There's been quite a bit of discussion on this forum and the upshot (correct me, please, if I'm wrong) is the FSX is processor hungry and benefits from lots of additional memory on board. Hybrid hard drives are an up-an-coming thing and the more video adapter, the better.
New developments are heading me down a different path: The nav computer on my boat is acting up. Small wonder, the thing has been halfway around the world in a less than computer friendly environment. So, I get to thinking (sometimes bad) and come up with this brilliant idea