I meant to post this on our board last week, but I forgot. I asked the November 2011 ladies for input on the whole "first look" thing because they gave some fantastic advice to us earlier. Once again, great advice. They were a huge help - FI and I changed our minds and decided to do a first look based on their responses. Here's a link to my post:
http://forums.theknot.com/Sites/theknot/Pages/Main.aspx/wedding-club-boards_november-2011-weddings_first-look-advice