Actually you can import vector art that is in illustrator path format into maya. I use it all the time but not many people use maya nurbs any more so it's becoming a bit of a lost art.
It comes in as nurbs curves. You can then use bevel plus to make them 3D or you can use the curve themselves and extrude surfaces from them.
It's great for bringing in custom logos to turn into 3D or things like tire tread patterns and such.
I found this youtube video. Not sure how up to date it is but gives you the basic idea of how to import vector art created in ps, exported as an illustrator path, and imported into maya.
Adobe Photoshop - Export Illustrator Files To Maya - YouTube
"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675
Last edited by ctbram; 20-04-2012 at 06:31 AM.