Just started, currently 21 & have questions!

I know some people will look at my profile and say Beta Supporter and never played?! WHAT?! Well... I'm not sure what to say, game didn't interest me and now I'm so far behind I don't know where to start!

So I started a Marauder, I've read some guides like this one :

http://www.pathofexile.com/forum/view-thread/1059500

That are all about magic find and finding loots which is exactly what I'm all about.

I've read some guides that say you can't really play this build though until you're 52 and with limited skill allotment reset points, how do you get away with not building up-to that point before hitting 52?

Also, are there guides on the most recommended ways of leveling/items to pick up and things to look for as you level?

I like how much depth this game has, now I want moar info. :D <3

ZiggyDs beginner series is good:
https://www.youtube.com/playlist?list=PL4aZrsY9M5qAnolDbjLydS73doD2MtAcQ