I like using web based services. I can pop around locations / systems / OSs and get access anywhere to the aggregator. Also integrates very well with Firefox. Just noticed that they also are all setup for IE7.

I seemed to have settled on iTunes for podcasts, both audio and video. Though, I am really not that happy with Quicktimes player for video. Need to do some more testing for best, or at least better, solution for vlogs.