The firewire 410 was on sale this weekend at guitar center for $249 so I got one.
I finally figured it out tonight. I think it's great. Sounds great and the software mixer is very flexible and I am still learning how to use it.
One important note. If you use a laptop, M-audio readme notes says that this card will NOT work with a 1394 chipset from NEC.
I emailed them for specific card recommendations.
I have an NEC chipset card and the interface did not work. In my new Dell laptop, I have a TI chipset and it works great.
I will be switching to a less capable laptop (my old work machine).
I asked m-audio for PCMCIA firewire cards that definately work with the 410 and here is the respnse.
Firewire Adapters
PCMIA CARDBUS
Vendor Product Chip Manuf. Manuf. Part# Power required for FW410
RATOC CBFW1 TI TSB43AA22 PCMIA Slot
ADS Technologies API-601 TI TSB43AA22 PCMIA Slot