Yepper, Look under Edit NURB's > Booleans. The tool works differently then the poly version. You pick the tool, then select the first object and press enter, then pick the second object. It is a good idea to add a mental ray approximation surface tessellation node to all booleaned surfaces as seams are a problem at render time with trimmed NURB's. If you crank the tessellation way up to handle the worst case closeup then you will have miserable render times so the approximation node can adjust the tessellation dynamically.