I just got a Mac and I am making chess lectures. I need a software like chessbase or ICC where I can highlight squares and make arrows while I analyze the position. I downloaded ICC's new software for Mac but the analysis mode does not work! What software can I use? I would prefer something that looks like ICC or chessbase. I don't want anything three dimensional. Also, I am planning on making 50+ free lectures...

What spec is your mac? If it's high, you can always download Crossover or some other virtualisation software and run chessbase through it. Alternatively, you could install windows through bootcamp and switch to it whenever you want to use the chess software. I'm not aware of anything for mac which allows you highlight squares and draw arrows, etc.