My 2 cents...
I'll be doing what I do almost every game. Arriving early with a buddy (who happens to be from ESPN), and parking at the very front of P11 across from the stadium. Setting up for some drinking (I've got a 12 pack and some Macallan 18) and grilling, and hanging out with the various other folks who end up parked around us. In my experience, you can find fun, friendly people almost everywhere doing some excellent tailgating. We've been doing this for most home games for the past 9 years or so. Lots "officially" open at 3:30 tomorrow, so some of them will likely open a little earlier than that, and people WILL be lined up to get in. There will almost certainly be a rush of folks arriving as the lots open, and then a bigger rush of folks arriving between 5-6, which seems standard for a weeknight game. If you get there (by car) any time after 6:30, traffic will suck. CBS Scene can certainly be fun pregame, and we've also had a good time with the folks at the "Redneck Bar" (Toby Keith's) a few times too. In my opinion, there's no reason to go into the stadium TOO early, except to beat the gate crowds. Though I'm curious as to what precisely they're planning to do with these Bud Light light-up cups they're putting at every seat tomorrow, and I won't be missing any of the pregame stuff for THIS game for sure.
Depending on how deep into the bag I get tailgating, I might head in early to try and get Troy Brown's autograph (7-8) in Lot 4 behind the Proshop.