Congrats on the tiffy
Here's what I've got at the moment:
The online clients are my WHS machine and is on 24/7, it is a MSI K9A2 motherboard so has x4 double space slots.
The offline clients are my general use rig, the 260s and Q6600 SMP are water cooled, this rig is generally now only on when I'm at home.
Options I've been considering are:
1.
WHS rig to i7 860 system doing bigadv, sell the 260s and move one of the 460s to the other rig. Only annoying thing about this is that WHS is OEM, so I've have to buy another copy. Possible 35K from the WHS rig and 15K from the other rig if on 24/7
2.
Down size main rig to micro ATX system and air cool, but can't decide which platform. Then move water cooling to the WHS system, and have 4x 460 in there. This is the more expensive option as there is the cost of all the waterblocks. Possible 45KPPD from WHS, plus 15-30 depending on platform for the other rig.
Also I can't decide whether to hang on until new platforms come out next year, decisions decisons!