Activity for Chelsea

What songs are you using to... walk down the aisle, parents intro to the reception, bride and groom intro into the reception, etc. FH and I are having a hard time picking songs and I feel like I have listened to every song possible.

We are having an open bar but we are providing the beer and wine. How many cases of beer and bottles of wine would you suggest to purchase for about 120 guests.

I am getting married on June 24th and was wondering when my invites should go out. My main dilemma is that my FH brother and his fiance are getting married a month before us and have yet to send out their invites or really do much for their wedding....