I was thinking about this last winter. I am under the impression that my ASROCK Z97 Anniversary mobo can't take a TB adapter for my studio desktop. I've added 2 -2Tb Seagates and 32 gb of G Skill since getting it, but should have paid more attention to the mobo.
http://www.newegg.com/Product/Product.aspx?Item=N82E16883227593 After Jim suggested the MOTU Ultralite AVB I/O, I got a great a deal on a Scarlett 18i20 then an OctoPre Mkii, so I am plotting upgrading to the AVB at some point. I've also considered the Audient i22 and am still waiting to see/read reviews on the Arturia Audio Fuse.....
Michael