I created myself an iSCSI san yesterday. Total cost: various junk i had laying around, so cheap…
Via epia ml8000 with 800Mhz C3 cpu and 256MB ram
4 port cheap-ass pci sata controller
300GB maxtor sata disk
Using debian stable, iscsitarget and system management through webmin.
Works like a charm.
Downside is that the via card only has a 100Mb NIC.
Only one pci slot means no room for a giga card.
Next step: get a hold of hardware to make an esx server.