I also took a brief look at BlogJet. It appears to be poised to be better than w.bloggar in many ways. The GUI is crisper. It supports .Text out of the box. However, I'm a bit concerned about the pre-beta status and having it time expire on March 15, 2004. They're also going to make it shareware as opposed to freeware. I'm OK with buying shareware, but it better add value over freeware apps then. w.bloggar will suffice for now.
Lastly, I did some digging on RSS aggregators. In my mind, FeedDemon stood head and shoulders above the rest. Plus, Nick Bradbury is a Delphi guy who writes amazing software (see HomeSite).
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.