Anything like RatingBuster?
 

Hi, there is an awesome addon called RatingBuster, witch calculates your stats on items and shows exactly how it will change your stats.... Like say you pick up a item with +20int it will add to tool tip exactly how much mana and crit that adds to your toon, either in green or red depending if that stat goes up or down.

Anyway, the addon still works but it has no options for mastery, and there could be more rom for cool stuff in a item comparison tooltip, so I was just wondering if anyone knows of a similar addon that dose the same or more?

RatingBuster does have Mastery. It's a valuable information source on my screen, and it always tells me when I'll lose or gain Mastery when pondering to upgrade my gear.

huh?

I am using MMOminion and it says it is updated... . is there more than one version on this site?

I am using
http://www.wowinterface.com/downloads/info5819.html

Yeah, it's the same version I use.

so are there any mods that do the same sorta thing?

Definitely working with Mastery:
Screenshot taken 5 minutes ago.

Try this version;

http://www.wowace.com/addons/rating-buster/files/