twitcher

Twitcher is a Twitter client that allow you access to your twitter account.
This tool offers you multiple views with main timeline, favourites, replies, sent statues, direct messages and public timeline.
You can get notifications when new tweets are downloaded.
It also displays image previews for selected image upload services (tweetphoto.com, twitpic.com, yfrog.com, pikchur.com) and raw images.