Good point rharv!

Any firewire chipset for digital audio should be from TI (Texas Instruments) If you read the many posts on audio forums (Gearsluts, KVR midi, etc) you will find that this configuration is known to work with most interfaces/drives, whereas other manufactor's MAY not be compatible with most interfaces (M-audio, MOTU, Tascam, Presonus, etc)

Hope this helps,
Ed