I replied on the other thread you started that I'm also planning to attend the Comcast Party but I'm also not sure what to do that night.
Dan Majerle's is having a party in Downtown but its $50 and I'm not sure I want to pay that much again - Comcast is also $50 but at least its a Patriots event, goes to a charity and I believe it includes some food.
The Bud Bowl block party is close to Craftsman court and thousands of tickets were being given away free by the radio stations but are being sold for $200 each now. Locals are making big money on that one.
I might go out to Glendale, spend a couple of hours at the NFL Experience and then check out Westgate right across the street. There a Jack Daniel's Experience Party there and probably some other stuff.
Late on Friday night (11pm) the Rookie of the Year Party at Barcelona (not sure where or what that is) opens to the public for free.
Other ideas?