If price is no object, then OhioKyle's solution is obviously the cleanest.
However, I will say that, for my money, a hole in the wall with a one gang wall plate is all I needed. two less connections to worry about - not to mention the possibilty that wires get lose or lost behind the wall. Also, if an upgrade is need, not only do you need new wires, but you'll need a new gang-plate.
It's all too much for absolutely no gain, in my book - especailly when the whole mess will be covered by the plasma and the AV cabinet.
