Admission is $12 for adults, and $8 for kids 3 to 13 and seniors (63+). Two-day passes are available for a discount, $20 for adults and $15 for the kids. Seniors can get a two-day pass for the same price as daily admission, just $8. Admission for children under three is free. You can buy tickets online here.
A map and driving directions to OMSI are here.
OMSI is looking for volunteers to support the Faire. To volunteer your help, contact OMSI at firstname.lastname@example.org.
Check out MAKE magazine online while you're at it. See MAKE's online schedule of upcoming Maker Faire's all around the globe to find the date and time of a Faire near you.
UPDATE 9/15: Getting out the door now, heading for OMSI.
UPDATE 9/15pm: Just got back... took lots of pics. Had a great time. Will be blogging up a storm about it.