I love Siemens NX 10, personally. I can't get over how it could run in Windows Server on a potato over Terminal Services a decade ago; whereas Solid Edge, SolidWorks, and Autodesk all puked and blew chunks Siemens NX 10 hummed along like the Terminal Services environment was its home turf.

Maybe I should spin up a Windows qube, just for old time's sake...