There is a whole sub forum created for Astral projection over on
http://www.spiritualforums.com/vb/forumdisplay.php?f=7
Spiritual forums is my home from home, they are a very friendly and welcoming bunch of people. Although you do not need to join to read the forums.
I projected once where i remembered it but it was an accident and i took a nose dive into my bedroom floor. Litterally, which is what ended the session as my body started to hold my breath as i went deeper through the floorboards and foundations of the building.
If you are going to project i would stick to getting comfortable with the basics to start with like moving around lol.
There are many experiences shared and techniques too on that board above.
Good luck, it is a wonderful experience no matter how brief your first wander might be.