hai,
i am starter in the game designing, it my project to use AI in game. Could u tell me how to use the unity. and how to start with.
just see the tutorials in youtube(these list are best channels for unity3d in youtube):
http://www.youtube.com/user/ETeeskiTutorials/videos :developer 2d tuot
www.youtube.com/user/BurgZergArcade
http://www.youtube.com/user/3DBuzz
http://www.youtube.com/user/HowToMakeMobileGames/videos?sort=dd&view=0&page=3
http://www.youtube.com/user/infiniteammoinc
http://www.youtube.com/user/TornadoTwins
http://www.youtube.com/user/jiddabug21/videos
http://www.youtube.com/user/theslayer29179/videos
http://www.youtube.com/user/Luciotsampacabelo/videos
http://www.youtube.com/user/zeeshan595/videos
http://www.youtube.com/user/InsurgentXdotcom/videos
http://www.youtube.com/user/thenewboston/videos
http://www.youtube.com/user/VallentinSource/videos
http://www.youtube.com/user/narutoisgreat1234/videos
http://www.youtube.com/user/zeeshan595/videos
http://www.youtube.com/user/TheTutorialsPlanet/videos
websites - (tutorials for unity3d)
http://www.gamertogamedeveloper.com/
http://cgcookie.com/unity/category/tutorials/scripting/page/2/
www.unity3dstudent.com/
http://walkerboystudio.com/html/unity_training___free__.html
on the other hand follow the documentation
actually these links are really great, they should get stickied or something.
EDIT: Uh oh, okay, I just found the “teaching” section of the forums 
thank u guys…:-o