Visit any of the major casino's websites that you plan on visiting while your in Vegas, most will have a link to their poker room and in there you should be able to find a list of any scheduled tournaments the casino's poker room is hosting. Most run daily and weekend tournaments with moderate to high buy-ins.

Ya you can go to just about any of them in will find games with low buyins mon/fri and bigger ones on the wekend got in a few when i was there and did good gl and have fun

Just about every Casino runs daily tournaments raning in buy in value. Check out the casino / hotel web site and I am sure you will find what you need.

Last time I was their I played the daily game at the Wynn. I think it was around $100 buy in. Around 60 entered and it went on for about 8 hours. If I remember right it was top 10% payout. Good luck when you get there.