I did a quick search on the web for what it would take to build two
systems. Here is the initial SWAG.
SuperMicro CSE-825S2-R700LPV U2 Rackmountable eATX Case (700W PSU,
Silver) $750 x 2 = $1500
Sony DRU190A 20X DVD Rewritable Drive - 20x DVD±R $40
x 2 = 80
Dynatron H53G 2U CPU Heatsink For Intel Xeon $50 x 4
= 200
Memory - 2GB DDR2 667 ECC Fully Buffered
$80 x 16 = 1280
Disk - Western Digital Caviar RE2 WD7500AYYS 750GB 7200 RPM 16MB
Cache SATA $200 x 4 = 800
Here is a SWAG at what we'd need to put two 8-core 16GB systems with
logical mirroring 750GB storage. The cost is $3860 from the above.
I'd round up to $4000 for tax, shipping, etc.
We might be able to buy other systems for a lower price point. I've
rounded to be conservative on cost. I would Run Linux with Xen and 4
VM's per server which would give us 8 server instances to work from.
Thoughts welcome.
Motherboard Information
http://shopper.cnet.com/cases/supermicro-cse-825s2-r700lpv/4014-3030_9-31954268.html
Heatsink Information
http://www.netfreez.com/?p=catalog&mode=search&search_in=tags&searchstr=xeon
DVD Information
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3569869&CatId=482
Memory
http://www.newegg.com/Product/Product.aspx?Item=N82E16820208200
Disk
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136144