I've been using Outlook plus Omea Pro to manage my huge e-mail and RSS load for years. But having looked at Outlook 2007 and decided that there's nothing there for me, and with Omea Pro going open source (and therefore, I suspect, remaining in development limbo for some time to come), I'm actually starting to contemplate a change. Right now Thunderbird looks like the most likely candidate, so I was interested to read this review of Thunderbird 2.0 beta 1.

Making a change means throwing away several years worth of archived RSS, and I'm skeptical that my gigabytes of saved e-mail can be successfully converted, so it's a big risk.