AEM doesn't make a crank pulley. The debate was about crank pulleys. You can use either UR or AEM accessory pulleys, they won't hurt a thing. I like the UR accessory pulleys, as their machining quality is top notch.
I wouldn't use a solid crank pulley, though. I have a "group buy" type of thing for real aftermarket harmonic dampers (crank pulleys) from Fisher. It's $225 for the harmonic damper (either size) if I can get 5 people. Here's the link:
http://www.preludeonline.com/showthr...threadid=25150