Everything in wow has a spellID it seems... I don't know of a LIST per se, but what I do in such cases that has worked so far is pull it off wowhead (or similar).
For example! I see that eradication is a lock talent. I pull up the talent on wowhead (http://www.wowhead.com/?spell=47197 ) and take a look. I see that it applies an effect. This is the actual buff you gain when the talent goes off. Pulling THAT up, I see that it is in fact the buff gained. I look at the URL of the page. The end of the URL for the buff is in fact the spellid in the game as well, so you would imput into parrot 47274 under icon, and all should work.
That said, this should probably be in the addon help fourm? *shrug*