Catalyst 8 Core fibre RAID

Hi,

We're shopping:

1) One 8 core 8 or 16 GB RAM MAC with:
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2) 1 (4 channel) fibre raid card
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3) 2 Video boards with 2 DVI-D OUT each (2 with matrox digital triple head, leaving 2 DVI-D outputs for program)
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4) 1 (4 fibre channel) Apple Xraid complete with 14 disks & 7 TB
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1 VGA / HD input card

* we'd like to know: is it possible ?? I'd like to use 2 triple-heads with 3840X 1024 each and have 2 other DVI-D outputs, including a VGA or SDI/HD input. We'd need to know also what VGA / HD input cards you recommend.

tkx,

Fernando