OK, good news (so far)....
I think I have it working now as a single 3TB partition (2.72 but that is what it should be).
So, all I did was completely erase anything on the drive so that it was a bare drive, essentially. No partitions or anything. Then I plugged the drive into the WHS 2011 box and when I went into the Computer Management -> Disk Management section and it says that there is a new disk ready to be configured (the wizard pops up). So I went through the wizard and created the disk as a Simple Disk, assigned it a drive letter, and formatted it as an NTFS drive.
I am, however, going to back this drive up to an external drive just to be sure. I want to fill the drive up and see if the partition crashes (hopefully not) But the important thing here is to configure the drive as GPT (not MBR or you will be limited to 1.8TB or 2.2TB I think).
This is how I did it. A few things to note is that I have this running on a PC that natively sees the drive as a 3TB drive without any disk overlays or whatnot. I also have all Windows updates installed for WHS 2011 as well.
I don't foresee any issues with the configuration I have, since Windows Server 2008 supports large partition sizes using RAID technology, and WHS 2011 is based off of Windows Server 2008 (a stripped down version, but still is a derivative of Server 2008 from what I've been told by various sources). I can't say if this will work for everyone. The key here is to completely wipe the drive of anything... partitions and files so that the OS sees it as a bare, blank, "new" drive. If it has partitions already on it, the wizard will not come up and you may not get the option to mount the drive as a GPT-type drive (you may only get the MBR option, which limits you to 1.8 TB or 2.2TB as mentioned above). And again, I have all WHS updates installed, and my motherboard which is an Intel G45-based motherboard, can natively see the 3TB drive as just that.