I started a discussion about this topic recently. In order to not have the top glass contact the monitor and have the monitor flush against the bezel, you need to mount the bezel to the underside of the cocktail top. Use a router to make the "ledge" for the bezel to fit in, drill some holes and attach the bezel. I then needed 3" tall, 3/4" thich pieces of hardwood to attach betweek the top and the monitor mounting brackets.
To give everything a finished look, I would suggest that you smooth out and paint the inside edge of the top black. Then route out a ledge for smoked plexi or glass to be installed on the top side of the top, with clear glass top mounted over everything.
I really need to snap some pictures of how I did this and set up a web page since I spent a lot of time (and questions) trying to figure it out myself.