Thanks guys.
48458 -- I could use the bits if I can't find anything else, but I'm looking for socket bits, i.e., something that can go on any of my ratchets, extensions, etc.
JoeB -- thx for pointing those out. Although I'm not normally keen on Craftsman stuff for Torx applications, that set may work well for the limited use these will see.
Still interested in hearing if anyone knows of actual socket drivers!