I've followed Apple forums long enough to know that Revision "A"
may be tempting, but Revision "B" or later is always much safer as far
problematic issues.
What concerns me here is wondering whether the choice of graphics cards
is causing more of the fan noise problems than people realize.
If your primary concern is quiet audio recording, I would think that
the 6800 Ultra, using 2 PCI slots AND having yet another fan would be
the first thing I would avoid.
Of course none of this SHOULD be an issue with an Apple product,
but bells and whistles are hard to resist.
From what I'm reading here, if you MUST have the 30 inch display,
I suppose the best attitude is to wait just a bit longer to see what happens with the next revision as well as the single slot ATI X800 Pro card.
Grebo,
I can't imagine how you must feel after all you've gone through.
You might consider the downgrade to the 2.0, or just hang in there
a bit longer and put your money into more RAM memory, a single slot Pro
graphics card and leave room for a really nice A-D interface.
You're only looking at 2 more months before you know what will be available in the next revisions.