I'm using a Hackintosh with a Gigabyte x58a-ud3r which has 6 ports on Intel ICH10R controller, 2 ports on Marvell 88se9128, and 2 ports on a 88se9128 pci-e 2.0 card. The Zevo drives are just on the Intel controller, using 2 vdevs with 3 x 2TB Seagates in each. Pushing 400-600MB/sec.
The OS X RAID cards are insanely overpriced, and a waste too since they're just going into JBOD. Anyone know a good HBA/JBOD card thats cheap? IMHO, you're better off buying a good motherboard with good SATA controllers, and buy some more PCI-e ones if you like.