Decent bundle indeed. I've Twitterrific running right now. Nice low-footprint Twitter client, mainly just to catch updates. (I still prefer TweetDeck or the Twitter web page for general tweeting.
I think I might warm up to the others that I've installed thus far from the package. A friend raved about ShoveBox all last year, so I really have to see how useful it becomes in day-to-day use. The others might just be a nice bonus but with little use.