Establishing a no meat goal

Photo by val'sphotos from Flickr.

Still working on eliminating meat from my day-to-day diet (I think we're up to 10 days of no meat as of today). It occurred to me recently that because I'm not taking on a philosophical transformation (such as "I'm a vegetarian"), I'm just trying to change things up and maybe get a little healthier, too, that in order to be really successful with this that I needed to establish a goal. This gives me something to focus on working towards rather than focusing on what I'm not having.

The easiest goal I could come up with is to set an end date, basically, "I will completely eliminate meat from my diet until [some day in the future]". But, what date should I pick? 

I remembered hearing something in the past about the number of days in a row that one needs to do something to psychologically establish it as a habit. I quick google search, informed me that, almost universally, people think it's a mere 21 days. That doesn't seem too bad - but doesn't seem like much of a challenge either. So I upped it to a round two months which makes the goal May 17th, 2010. That's good timing since it's only a week or two before the Indy 500 - where they serve things like this:

Eric & his turkey leg at the Indy 500