im looking for an addon to hide the wow casting bar. I dont want to have to get a huge bar addon to do so. just curious if theres one out there. Thanks

http://www.wowinterface.com/downloads/info12782-x3CastBarHider.html

Uh, what is a RAR ext on a file? This is what I got when I tried to download this... looks suspicious so I cancelled it.

RAR is a common compression format.  It's similar to .zip

As a general rule of thumb, anything you get from WoWInterface is going to be safer than your normal web browsing habits :P