Costco has the Maddog External 16X DVD, 4X RL burner for $90 after $10 MIB. USB 2.0 only I think this is the NEC 3500 repackaged. IF so firmware can be easily changed to accomodate new features. See the NEC forum.
Available online at http://www.costco.com/Browse/Product.aspx?prodid=11030435&whse=&topnav=&cat=&s=1