Information about PJ fans.

Calling all projector junkies...

I just picked up a EIKI LC-XGA980U
http://www.eiki.com/Products/LC-XGA980U/Specifications.aspx

I'm curious about what type fans they use in projectors? Are they simular to newer pc fans? If not, where and how can I get a hold of some fans that would work?

Basically I want to take out my original fan and swap it for something more powerful and quieter...

PJ is shipping to me now via good ol ebay.