Looking for a new Mac Twitter app

With the recent news that Tweetdeck is being discontinued, and with the official Twitter app for Mac being all but abandoned since June of 2011, I'm wondering what I should do as far as Twitter.

Should I bite the bullet and rely on twitter.com/tweetdeck.com, or is there a decent Twitter desktop app that can replace these two?

I really like growl integration of the main Twitter for Mac app, and I feel like the web versions wouldn't integrate well with this/notification center.