Jeff Garzik wrote:

Notable updates:
* new driver for ULi SATA (formerly ALi)
* SMART support via ATA passthru CDB
* support for Promise PATA ports

<snip>

Patch:
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.9-rc3-libata-dev1.patch.bz2

I'd just like to give this the "two thumbs up". I'm getting great results from the SMART support 
(Thanks Andy and John!)

Brad