[q I also want to throw out the Inwin i-530 card readers for consideration, their Firewire port is wired up to match the MN31N (confirmed with a continuity meter and checked against their header pinout in the manual). The i-530 also has front headphone & mic ports that will work on a standard Intel-style audio header, and of course it's a multiformat card reader too. Black & beige, $22 at Newegg. This gets you past worrying about the case having compatible wiring.
The Asus K8V Deluxe also has an MN31N-style FW header, I've got an i-530 plugged into mine. No FW devices yet, though.[/quote]
Yes, after searching for cases with front panel firewire, I also started looking for devices like the i-530 that mount in a drive bay and give USB/FW ports. They're hard to find if you don't know what to call them! Definately something else to look at as it would enable me to keep my current case, a somewhat noisy but otherwise satisfactory Lite-On FS020. Anyway, thanks for the recommendations.