The Piano Bar around the link is pretty good for live music. Bar man is sound, tip well and he'll serve you first every time and probs send the drinks to your table.
In Flamingo there is a Mexican bar that's all you can drink for 20 dollars.
For pool parties, Bare is decent at the Mirage. Most birds have their tats out. #bareYourPair
Yama Sushi is decent all you can eat near the mission centre.
Casino's near the link are cheaper minimum bets, down town is cheap but pretty rough. Luxor and the one next to it is fairly cheap too.
Enjoy!