Need suggestions for indoor birthday party venues?!

We had a party earlier this year for my 5-year-old daughter at Seattle Children's Museum: $150 for 3 hours of room rental (and the rooms are adorable), and all of your guests get full run of the museum all day at no extra charge. Worked out great for us, and everyone said they had a fantastic time.

Also terrific? Mountlake Terrace Pool. The private rooms are pretty utilitarian, but of course everyone's there for the POOL: a total kid paradise. I'm not sure about the party rental fee, but since it's a city site, I'm betting it's reasonable, and my girls had an amazing time at a preschool party (though of course virtually all of the fun was in the pool)...

One of those blow up bouncy house places. A frozen yogurt/ ice cream place. A laser tag place. an arcade. bowling. your house. the movies.