I'm not even sure there is a target driver for this card. So without that critical component, all you get is initiator support.
Why do you need it so badly? You'd need quite a few disks to saturate existing quad port qlogic HBAs @ 4GB on a PCI-E 8x 2.0 slot.
I just picked up 3 QLE2460s for 275 each on ebay. A Dre would say, "now you can beat that with a bat". The qlogic driver is very mature, well supported, has a HUGE user base and most importantly... VENDOR support.