Sorry but we do not sell any Fluke multimeters here are NI, there is no way for us to tell which one you should purchase. I suggest you go to the link below for more information about Fluke's products:
http://us.fluke.com/usen/support/default.htm
As a side note, we do have instrument drivers for the Fluke 187/189 for LabVIEW available for download on our instrument driver website.