I saw that AddMeFast macro...will it get me banned from facebook? I want to use it for my company, but can't take the risk of losing my page permanently.

Anything considered "gaming" the system or blackhat will put you at risk for banning.

I will say that I've boosted several of my facebook pages to multiple thousands of likes for over a year and have yet to be banned.

In short, no. Long term? You lose some cash if you are trying to market your fanpage.