Once again I'd still like to know the benefits of Nano ITX over the current Mac mini's form factor and internal layout.Reduce power consumption(useless),reduce heat output, smaller physical board, and (thereby) more space.
Allowing for something else to take up room, say a larger processor, or GPU.
More freed space and lower heat output means more space for a bigger piece of something else, and being able to handle it's heat requirements.
Micro ATX and Nano ITX are still very different.
Step up then. BTX was the last attempt but that was to handle the +130W processors Intel was going to be releasing.That and motherboard architecture needs a revamp. Its been the same since the 70's.
I'm sure a $299 Dell is just as professional since you have expansion slots.Like I said, you want what the Mac Pro can do (be upgraded) without the price... Otherwise you wouldn't be talking about this you would go buy a Mac Pro.
And, again, this is Apple, they don't do this kind of thing.
Get one of these and fulfill your plug in desires.
http://www.ibuypower.com/Store/Configurators.aspx?mid=375