I just came across this useful little blogger Mac Widget. I use a number of widgets that came with the default Mac install and have since found several others of use. I particularly like the portfolio widget that shows stock quotes on a 20 minute delay basis. I'm also currently using Yahoo Widgets as well, so you might say I'm a bit widget happy.
This is my first test of the blogger widget though. It seems to work fairly well and the only additions I would recommend right off would be some simple formatting and link creation tools within the widget. Other than that it is simple and straight forward to use. Happy blogging!