If you need a driver for HP Printers on Apple OS X Lion, you can download it from here: Apple HP Printer Pacakge The full list of compatible model printers it works with are here.

HighPoint Technologies RocketRaid 3522 now works in post 2006 Mac Pros and XServes. With the addition of a firmware update these machines can now use another of the companies raid cards on a Mac. This brings another hardware raid options to a software raid world. The card supports up to eight SATA II-equipped hard disk [...]