you have to configure them all the same to get a better perspective.
otherwise you are not comparing correctly.
the platinum daw is too drive heavy (unless you really need that drive set up)
better look at the gold from studio cat (more on the normal side)
many items not mentioned on 2 of the sites. IE Power supply brand,size, video brand, model
fans? case and cpu.
memory brand CL ratings?
Rain and Jim do not offer back up imaging software (like Paragon)
rain you have to add $299 warranty to get any kind of support/warranty ($3000 for rains system a full $1000 more than the other 2)
where i know us and Jim have real support.
rain does not offer the 4.5GHz like Jim and I.
the 3rd option should not even be there :-)
http://www.adkproaudio.com/systems/saved_system.cfm?systemid=108&saved_id=24963 to use to compare to Jims Gold studio.
pretty much the same price when you factor in the obvious differences.
cant go wrong either way
Scott
ADK