Here are add-in controller cards if you want to go that route Try here.
http://www.newegg.com/app/manufact.asp?catalog=410&DEPA=0 Here are two boards that support 4 sata devices,
ASUS A8V Deluxe VIA K8T800 Pro VIA 8237 1 AGP, 5 PCI Realtek ALC850 2 PATA, 4 SATA (two from VIA 8237, two from Promise 20378 controller) VIA 8237 and Promise 20378 both support RAID 0, 1, or JBOD 8 USB 2.0, 2 FireWire Marvell 88E8001 Gigabit Ethernet
MSI K8T Neo 2 VIA K8T800 Pro VIA 8237 1 AGP, 5 PCI RealTek ALC850 2 PATA, 4 SATA (two from VIA 8237, two from Promise 20579 controller) VIA 8237 and Promise 20579 both support RAID 0, 1, or JBOD 8 USB 2.0, 3 FireWire Realtek 8110S Gigabit Ethernet
Heres an article about them,
http://www.extremetech.com/article2/0,1558,1647381,00.aspLord, I love tabbed browsing!
