Furniture: LED Unplugged
We decided to rent lounge style furniture when we decided to hold the cocktail hour in doors rather than on the patio because of the heat. The furniture was a huge hit during the cocktail hour and saw some use later in the night as well.
We used LED Unplugged because they were recommended by our coordinator, Scheme. They only have white leather furniture, but that worked out well for us. For our wedding, Kevin from LED recommended a set up of modular furniture that could hold up to 17 people "comfortably" at one time (although we squeezed in more people than that). Per Kevin, this is the set up he generally recommends for weddings of 100 guests. We also rented some light-up cubes and light-up high top tables (although the Bellagio provided cocktail tables as well). The best part was that Kevin gave us a 20% discount because we were referred by Scheme. Delivery, set up, and pick up were free.