As you may have understood reading MacStories, I’m in love with Twitter. For this reason, I’m always searching for the best client around, hoping to find “that new one” which integrates all the features I would like to see in a Twitter app: slick UI, multi-timelines support, Growl, hashtags, url shortening and so on.. To help you in finding the best Twitter client around, here’s a list of 40 Twitter clients for your Mac. To download them, simply click on the link. Obviously, I haven’t tested