I just want to share with you my discoveries using an SSD HD to store the FSX files and what changed in loading times. I bought a cheap 32 GB Supertalent Masterdrive OX copied all FSX files over and what happened... well the loading times were 3X faster...!
I think that these drives are really the near future, and in a game like FSX that is very demanding in loading hundreds of small files continously it will make an huge difference.
I posted some more detailed benchmarks on my blog if anyone wants to have further details.
http://l45.sytes.net/?p=613