The road to the Final Four officially begins tonight as 3 conferences start their tournaments. Selection Sunday is 12 days away. Here are some tournaments to pay attention to in the next 7 days because they have teams that are locks to be in the NCAA Tournament, or they have teams that are on the bubble, and could knock out a big conference school if they were not to win their conference tourney.
Horizon League
Butler is a lock just as they have been the last few years. Nobody else in that league has a chance at a bid, so Butler losing would eliminate a bubble team.
The Horizon League Tournament is very strange. It is basically 2 different tournaments. Like the Pac 10 it is a 10 team league, but instead of having the bottom 4 teams play to get into the quarterfinals like they play it like this:

So the bottom 8 teams will play 2 games before the top 2 seeds play a single game, thats why I said its like 2 different tournaments. Obviously things are very much in Butler's favor since they have to just win 2 games, and both games would be at Hinkle Fieldhouse.
West Coast Conference
Gonzaga is a lock to be in the NCAA Tournament, so its important for the bubble teams that they win the tournament, but unlike the Horizon League, the West Coast Conference has a legit #2 seed in Saint Mary's that will be with start Patty Mills. Before Mills got hurt Saint Mary's was a top 20 team, and have an argument to be included in the field of 65 without winning the WCC tournament. The Tournament starts on Friday, and since its an 8 team league you'd think it would be a pretty simple bracket. That is not the case as you can see:

Seriously, who comes up with this crap? It appears that Saint Mary's and Gonzaga will meet for a third time this season. Gonzaga won the first two meetings by 7 and 2 points. The entire tournament is being played in Vegas.
Missouri Valley Conference
Creighton is in right now, and I think they will get in regardless of if they win or not, the team to watch is Northern Iowa. Joe Lunardi has them in right now because they won the regular season title, and go in as the #1 seed, but I don't think they will get an at large bid, so they probably have to win it. The MVC is a 10-team league, and they have a normal 10-team tournament, with the 7-10 seeds playing to get into the quarters.
Metro Atheltic Athletic ConferenceSiena won the regular season championship, and Lunardi has them in ahead of some teams that are getting at large bids, so if they don't win the tournament there is a chance that they could get in as an at large. Remember Siena beat Vandy as a 13-seed in the NCAA Tournament last year. What makes things interesting in that league is that Siena just lost to the #2 seed, Niagra, last week. It is a 10 team conference, and they play their tournament like the Missouri Valley.