Did some research on the subject today and came up with a bunch good info, most of which is summarized in my last post on the Macrumors forum here:

Page 48 on cheap Optibays.

I’m just going to dump these links here for now:

Newmodeus’ Optibay (pass-through == 6 Gbps)

http://www.facebook.com/notebookdrives

MCE’s Optibay (3 Gbps, $148 installed)

OWC’s Optibay Install Instructions

iFixit’s Optibay (Marked-up eBay el-cheapo)

Maxupgrades’ Optibay (Plastic?)

OWC Firewire 800 Superdrive Enclosure

OWC Drive formatting guide

Kingston V100 SSD Review

Kingston SSD Spec Page

Apple Re: Sudden Motion Sensor