OK, so searching to make a machine that I will not wait for when I'm doing RAW editing from the Sony A900 on Adobe Lightroom, here is the setup (look at the picture).

This has been build for testing around Microsoft Technet license and also Trial version of Adobe Lightroom 3.3.

All Adobe Cache, Library, image, OS, Temp drive are located on separated Hard drive and Disk controller.

Even with this monster, I'm still waiting a good 2-3 secondes every moment I'm opening a new image an I'm zooming in it. I hope one day this will be quicker ...