Let's take this off in another direction but back to email... Any suggestions on how I can keep two mail clients (one under WinXP and one under Mac OS X) in sync?

Ideally I'd love something that would be able to sync client-to-client without just having to do another POP download of the same mail. I'm sure I can set up a couple of clients to leave mail on server until it's been grabbed by both clients. I'd like something where I can grab with either client and then synchronize them to each other.

I'm currently using TheBat under XP which has all sorts of "power" but I haven't yet updated to 2.x (I'm subscribed to the beta list and I keep seeing them just introduce more bugs and features instead of fixing everything I've already had a problem with). I'm not fully taking advantage of all its abilities. I don't need the world from a mail client, but I do have some very strict requirements.

I took a very quick look at Thunderbird today and may try that on the Mac. I'll be getting a Powerbook in a few weeks (no PC laptop came close enough in total features and fit-n-finish in my opinion).

I can't stand Outlook even though it does have some useful functionality. It's just too much of a pig and back-aswards in most respects though. On the Mac side, I don't know if Entourage will be all that. The new version does look decent and if I were interested in Exchange support it looks like it will be full-featured. Mac OS' own Mail program is also not on my short-list. Though starting with 10.4 (Tiger) it's going to fit in nicely with the cool new Spotlight searching/indexing they're fitting into the OS.

Bruno