Here are a few pics of some free things to do in Vegas...
Bellagio's Water fountain show is like every 15-30 min from 7pm-12am and it is to different songs like sinatra.

Mirage's Volcano show is about every 15-30 min. They time these first 3 shows so that you can walk from one to the next and so on without missing any or getting to the next show halfway through.

Treasure Islands Pirate Show.

Freemont street has a light show above the entire street set to music. This one is pretty amazing.
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Here are some pool pictures.....
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And some clubs
All in all, Vegas is such an amazing experience every time I have been there. Too many funny, crazy, wierd experiences....:bigj oint: And i brought some bud with me my last trip....so much better