All right, I had a (very) slight deviation from my plan and just bought a refurbished 250gb WD Blue 6.0gbs SATA to run my OS off of (I have an older WD 250 to clone the dual-boot OS to) and I pulled the trigger on a Sans Digital 5 spot HDD rack as mentioned in a couple really clean builds I've seen. That, along with two new 60mm fans for adapting the stock PSU case, set me back a total of $64. So, we're now at a net investment of $54 beyond my original trade-in value for the old iMac. Down the line I'm going to need to mirror my 2tb WD media drive as well, so that will add some cost.
Here's the stock photo of the drive rack, I think this is going to give me the cleanest and most efficient mounting solution vs trying to first locate and then daisy chain a bunch of the G5 2-drive bays:
The other thing I'm now mulling over is whether I want to use the extra space above my motherboard where the HDD caddy originally went to create a top exhaust vent driven by my extra 120mm fan. I could either cut a hole to size and put a filter over it or do a template and drill setup like that incredible 1 year build I posted a couple days ago. The template/drill would look like this:
And then, if I went with the full cutout and filter I'd like to do something like this:
At this point, I have no idea exactly how much heat this baby will really put off but it might be kind of a cool addition to the whole black and brushed aluminum theme I've got going with the Mountain Mods back panel. What do you guys think?