Questions on optical drives for X6 Ultrabase

[supahdren]

I've read through as much as I could find about this topic on both this forum and the rest of the web, so please forgive me if this has already been answered and I somehow missed it. Anyway, I recently ordered an X61s with an empty ultrabase because the dvd-writer option said it might delay the order 3-4 weeks. Now, I'm looking to buy an optical drive to fill the ultrabay slim slot.

From my research, I know that this slot is limited to drives that are 9.5mm in height, which seems to be very few. A page at thinkwiki (http://thinkwiki.org/wiki/UltraBay_Slim ... rner_Drive) lists four possible drives, of which the Panasonic UJ-852 and LG GSA-U10N seem to be the newest. Here are my questions:

1) Are there any other 9.5mm optical drives that are comparable to the UJ-852 and GSA-U10N?

2) Does anybody have any experience with either the UJ-852 or GSA-U10N? Is one better than the other? It's hard to find clear specs on the GSA-U10N (such as if it burns DVD-R DL)

3) Where is the best place to buy either the UJ-852 or the GSA-U10N?

Thanks so much for the help and the great community!