It's official...again.  30-year old Monica (Arnold) Brown wed her 25-year-old Laker hubby Shannon Brown tonight in a stunning ceremony in Los Angeles. 

The couple has reportedly made all guests check in their phones tonight, so pics may be scarce for now.  But we've got the deets on which of her celebrity friends came out to support (and served as bridesmaid), the venue, the cake, and more inside....

They already…