I too, have a similarly configured Dell M6500 with 24 gigs of memory, 2 SSD's, Win7 Ultimate.
This has been a flawless workstation - no problems whatsoever - with literally tons of hours.
I'm getting ready to trade in, and the new one will definitely be a Dell. 
Only complaint - it's a Brick - as in - a heavy brick. 
Anthony R. Benitez 
Senior Mechanical Designer - Supervisor 
Applied Research Laboratories - The University of Texas at Austin 
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