The Adsense optimized Tweez Follower Theme ist a free (GPL) WordPress Theme 1000px wide with 2 Sidebars and 4 Widgets Positions: above the content, above and below the Postings, and below the Content. There is also an Option Page to populate the Footer. The Theme is published under the GPL license and supports localisation. Six languages are already included.
You can download it here
The Demo is a live Blog, where i use the great Tweet Blender Plugin for showing the Tweets.