We use Symantec Brightmail Gateways at work, and they're pretty accurate. I don't think using that will be much of a cost savings (probably depends on the licensing agreement with Symantec that a company has). For open source there's a package of ClamAV/SpamAssassin called MailScanner...
LSI makes some RAID controllers that handle many ports, such as this 16 port model:
http://www.lsi.com/products/storagecomponents/Pages/MegaRAIDSAS9280-16i4e.aspx
Verify and/or try converting the disk to GPT. you will only be able to boot newer Windows OSs on a GPT volume, but if you are running the one single OS that should be fine.
Depending on the OS you used (e.g. 32 bit) the largest partition size may be limited to 2TB. I believe this is not the case for GPT volumes in 64 bit Windows 2008 and Windows 7. Look at this link from Microsoft describing the storage limitations...
I noticed the following posts regarding network/server outages during the month of December. How will this affect the "boxen giveaway" contest?
http://folding.typepad.com/news/2010/12/index.html
Gigabyte has been consistently good. The P55 board would pair great with the i7-860 and the 880 board would make a nice base for a new AMD build. You can't beat the cool blue colors!
I've use this set for over half a year now and have had no complaints. It's also on sale with 10USD coupon. The timings are a little slower though than the Mushkin, FYI.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231277