Agreed. Big East is not very good and hasn't been since the legit teams jumped ship for bigger and better things.
A playoff system would be nice but it wouldn't have the same flaws that the BCS system does, it would have it's own. How many teams? How do you arrange the games? Who get's into those games? Currently the FBS has the:
ACC
Big 12
Big East
Big 10
Conference USA
Independents
Mid-American
Mountain West
PAC-10
SEC
WAC
Now, of those you have 5 legit conferences: ACC, Big 12, Big 10, PAC-10, SEC. You also have a couple of legit teams from the WAC, MWC, and Big East, while the rest are just garbage. Any given game is a legit argument for a game, but not for a season, or when playing for the NC.
32 teams comes out nice and simple...32, 16, 8, 4, 2. That's an extra 5 games/weekends. Means more drinking

. Will probably mean capping the regular season at 10 games in order to meet the current time table that the BCS occupies (over my 2nd week in Jan). You can't play all the games at a neutral site unless you want teams traveling all over the country and be hell on the fans. Everyone trying to book travel and hotels on draw night would be INSANE.
I think that the easiest way to get this to work is such:
Top 4 teams from the ACC, Big 12, Big 10, PAC-10, SEC = 20 teams
Top 3 teams from the WAC, MWC, & Big East = 9 = 29
Top team from Independents, Conf. USA, Mid-American = 3= 32
The real question is how do you arrange those games? Do you play the bottom against the top like in NCAA basketball? Auburn v. Temple? That'd MOST LIKELY be a comedy skit, not a football game. Do you pit the conferences against each other in the first two rounds so you come out with the best team in the conference? That only works with the big 5 since they have 4,2,1. For the mid-3, how about the top v. bottom, and then the middle plays one of the lower conferences. That'll work out nice and easy...3+1, 2, 1.
Now you get to figure out the TRULY difficult task of how to pit the remainders against each other. Maybe this would require a coaches poll and some number crunching. Give the coaches poll a really low rating and trust the computer, but make the algorithm public so the entire process is transparent. Crunch, regular season schedule, offense ranking, defense ranking, opponents faced, etc. In the end though it'll just be a crap shoot.
Now this was just me working this out in my head and writing it down as things popped in. Will it work? Who knows. I do know that figuring out the logistics of who can play is a lot easier than figuring out where, why, how much, why them, etc.
People also gotta remember that when you complain about a football team being in a particular conference, a team can't simply pick up and move just because the fans want to. Academics, athletics (besides football), research, etc. all play an important role in why schools are where they are. As much as we'd like to see a certain team in a certain conference, it just isn't that easy.
/blog. If you don't feel like reading, I don't give a shit. Go get a script for Ritalin.