The Edirol (Roland) FA-101 is nice, http://www.rolandus.com/products/details.asp?CatID=12&SubCatID=51&ProdID=FA-101. There are quite a few out there now. MOTU, http://www.motu.com/, has some too. Lots of choices. Are you looking for USB, PCI, or Firewire. I have an older Edirol unit that uses a PCI card and a rack mount interface box.
Roger
Roger