National Instruments makes something called "Labview FPGA"
http://www.ni.com/fpga/
It costs at least $2.5K, more like $6K when you buy a "Full" Labview development system:
http://sine.ni.com/nips/cds/view/p/lang/en/nid/11834
Here is the full page from the NI site on using it with the Spartan 3e kit:
http://digital.ni.com/express.nsf/bycode/spartan3e
However, it seems to be for educational use only:
http://forums.ni.com/ni/board/message?board.id=170&message.id=290961
Here's a google search on the subject that brought up some YouTube hits:
http://www.google.com/search?hl=en&fkt=52109&fsdt=59828&q=Xilinx+Starter+kit+labview&aq=f&oq=&aqi=
Here's one of the YouTube videos
http://www.youtube.com/watch?v=-ulWxOyOfgM
