Thanks for the tips, Captdan and Muziekchuur. I do plan to eventually upgrade to a Windows 7 or 8 64bit machine with nothing less than an Intel i7 (debating between the i7 5820x on the new x99 chipset or the i7 4790 on the current slightly older motherboard chipset). I'd probably go with the 4790 event though it's a little older. It's a only a quad-core compared to the 5820x hexacore, but it clocks at 4 GHZ and benchmark test show very subtle differences in performance between the two. Thus, an i7 5820x system would probably cost anywhere from $1300 to $2000 or more to build depending on the other components. Then there's the DDR4 RAM that's probably more expensive. Ideally the best machine would be one running on the mew i7 8 core processor and x99 chipset, or a Xeon processor, but that would be too way expensive right now. I don't want to spend more than a reasonable amount on a computer because today's top-of-the-range processor will eventually become the slowest tomorrow as technology improves and newer faster processors are released.
I've seen prebuilt i7 4790 machines on ebay for around $700, more or less. My guess would be to grab one of those, add an extra harddrive, dual monitor video card, and dedicated VIA chipset firewire PCIe card, and tweak the drivers and OS a bit and I would have one kicka** machine for tracking audio with all 32 input and output channels and several plugin in a high track count project.
In the meantime, I might go back to the DIGITAL page for Slot 1 on the console and set it for 32 inputs but 16 out and see if that helps. Then I might try 16 in and out, then 16 in and 32 out, and compare the differences.
Thanks again.