Wow... my post went really bad with that Buddy guy, be cool Buddy, we are all human, with different opinion, you know that.
Tell us more about your hardware and your usage, maybe we can compare ... ?
Anyway (maybe we don't care.. hehe)
I use raid 0 since 2 years on regular IDE drive 7200rpm, and i want to level it up a little... I was thinking about scsi, but i think i'll be fine with S-ATA. I do: Premiere, gaming, un-compress a lot of bit RAR, shrink DVD and stuff... So for me, i think Raid is the best, and i like it since 2 years and never let me down.
And i'm not convinced about the TCQ'ing, but if the controller and the drive support it, logically, it won't be bad, right?
Anyway, what is your controller guys, on-board or a PCI one?