They already gave you your wedding planning form? I'm getting married Nov 15, 2010 and I have gotten NOTHING form them. Did you ask for it? I thought they were supposed to send it out. They know I'm getting married, we have emailed each other several times with detailed questions.
And they probably did assume you were going to rent the sashes from them. I think there still is a charge per chair though, not sure how much though. $3/each I think? And the $150 fee is just what everyone gets charged it seems, like a baseline, although some girls have noted they didn't have to pay the $150 once down there (I think they determine this depending on how much they actually have to set up).