Newegg has the Sans Digital TR5M+B RAID 0/1/10/5/JBOD 5-Bay Data Storage Subsystem w/ 6Gb/s dual-port eSATA PCIe controller card for $175 - $45 off with coupon code EMCYTZT2900
[Exp 2/7] - $30 rebate
[Exp 2/7] = $100
with free shipping. This accesses five hard drives using only one cable and support hot-swappable SATA I and SATA II.