So, you got the MicroCenter deal? Nice! Looks great!
I got that same cpu/board combo w/ that Zalman Z9 they had on sale. I also have to recommend it (used in 3 builds already including mine

) I went w/ Linux Mint/xfce debian (LMDE) since my old linux workstation already ran 'buntu 10.04 LTS and wanted something different.
Phenom X6 1045T/Gigabyte GA-970A-UD3 $160 ($10 MIR)
Corsair Vengenance LP 16G (2x8) CL10 $116
Zalman Z9 $35 ($10 MIR)
Corsair CX430 v2 $45 ($20 MIR)
CM Hyper 212+ $26
ODD (same as yours) $16
Total ~$400 ($40 MIR)
These I already had / reused, estimated value:
Sapphire 5670 1G/GDDR5 $60
Seagate 1Tb pull/refurb ~$100
So my total was potentially $560 said and done, $520 if I ever get the rebates

. I got the x6 when it dropped from $110 to $100, so that is probably why my combo is slightly cheaper. Yes that is an obscene amount of memory, my intention is to run about 4 VMs under virtualbox concurently with the base OS. so far nearly a dozen people told me the PSU is too weak, yet the
PSU calc puts it at 260w min / 310w recomended <shrug> IMO it will work just fine. Even at 6 HDDs I am still 360W recommended, if I decide to make it my fileserver I will probably migrate all the hdds to it and put it on my kill-a-watt and see what it is actually pulling.
One gotcha I ran into with that case - had to bend the rim of the rear edge to make the 212 bracket fit (was hitting the bottom of the case, causing a misalignment of the rear i/o panel, you can see my wrench scuff marks

)...
hyper 212 / Z9 case mod to make bracket fit:

Other that that it was relatively painless build. Didn't spend a whole lot of time with cable mgmt just but them behind the board with a few zip ties, and put the remaining cable slack in the hdd bay. One thing about the Z9 it is QUIET (kind of why I went with the 212 plus, quiet under full load

)
side / no panel:

side / front / bottom:

Cheers!