I was accepted from the wait list at Oregon State this week! I didn't call or contact anyone until I received an email to schedule the phone call, but, like @Diagon says, It absolutely can't hurt. I'm 99% on accepting the OSU offer, but its been hard to look away from other schools. I think I am going to wait another week until I formally accept.
Best of luck to everyone. I hope our paths cross in the not too distant future.