IMO, Magic Wand isn't that good. People say it's imba if you know how to use it but seriously, how can you use it so that it's imbalanced? I'd rather put that money into some actual sustainable regeneration or a bottle.
Oh and there's http://www.dotafire.com I looked through a few just to get a general outline but you should really create your own play style. You can't just copy someone elses and expect to be good.