Meh, Plextor's been overrated since they discontinued development of the SCSI line. They've been sell IDE tech at SCSI prices. No thank you.
I've been happy w/ Lite-On (until recently), NEC (best value/performance), and OptoRite (HD-Burn). Half the price of Plextor, same kind of performance and quality. I can use the money I saved to buy media.