I'm not using an 828, but I have an ultralite hybrid.
but I get more pops/crackles, etc using USB than I do with firewire. I did have to buy a TI chipset firewire card, the VIA chipset onboard caused pops and crackles as much as the USB did.
I can use USB, but not at low latency. and I can use lower latency on firewire than I can USB.