Thx for the tips guys. I love my current 1693 but it seems more picky on media compared to my old Benq 1620 that my girlfriend now has. The LiteOn 160P6s is tempting since I'm happy with the 1693 though.
I'm think the 1655 seems hard to beat since it's the same price as the Lite-On and has lower jitter than 1650 I guess.
Not sure the LG is a good option for me since it doesn't do scanning which will be essential.
BTW- I've tried 2 different NEC 3550 drives, 1 from the Egg and other from Monarch. I sent both back with 3 days due to horrible scans no matter what firmware I use. I wont consider NEC anymore after this even though I read all the rave reviews. Guess I just got 2 bad ones