8 SM-1151SATA, P4 2.6, 2x1GB RAM, 80GB SATA RD, Redhat 9 preload, 1.44Mb floppy, rail kits.
The 2x1Gb was more expensive than 4x512Mb, but gives us more flexibility for growth and also for shuffling the memory around to specialize the machines. For machines that aren't doing anything too intensive (mail server), we can buy cheap 2x256=512Mb and donate the extra 2gb to the squid(s), if that seems helpful. And there will be slots available to just buy more memory outright if that seems like a good idea.
8 machines gives us some oomph, no matter what.
1 SM-2280S, Dual AMD Opteron 246, 4GB memory, SCSI RAID 5, 3x36, logical capacity 72GB, redundant power supply, RH9 preload, 1.44mB floppy,, rail kits.
This machine is very similar to our big dog geoffrin.
The total cost is $19,308, plus tax and shipping.
--Jimbo