Start building up your strength. Honestly, it doesn't really matter what direction you want to take your lifting. Whether it be bodybuilding, powerlifting, or just getting in shape; you want to be moving some weight.
Results require 4 things - food, weight, consistency and sleep.
Check out the book Starting Strength (second edition) by Mark Rippetoe. Whether you want to follow his routine, or another popular routine is up to you. However, every lifter needs that book to be their bible... You won't find a better detailed description of the big 3 lifts on a basic level. After you eat, sleep and breathe this form, you can start making slight adjustments to your technique to make the form the best suited for you.
You can read this for now: FAQ:The Lifts - Starting Strength Wiki
But I more than highly recommend you buy the actual book for $25. You will learn infinite more about the lifts from the book than you will this link.