My DFI X38-T2R has 8 SATA ports on it. Six come from the ICH9 southbridge, and two come from a JMicron chip. And you can use any of the 6 together for RAID0/1/5/10 and the JMicron chip can do RAID0/1. Not a cheap board though.
__________________ Project: Black and White i7 920 D0 | 3 x 2GB DDR3 | EVGA X58 SLI LE
XFX 4890 | Corsair HX750 | Corsair Obsidian |