Treo 755P or Blackberry 8830

I've been a mac user for the last year and a very long time user of palm. I'm considering combining my phone and palm as one device, but I'm very disappointed with the desktop interface on my mac. It was much nicer on my old windows pc.

So now I'm trying to decide if I should go the blackberry route or the 755p. I've heard blackberry will sync with ical and address book, I don't know about email.

As far as I know the treo won't do any, and as I mentioned I'm not happy with the desktop app for the palm.

I would appreciate anyones input who may have had experience with either of these and sync with the mac. It would be nice to have a truly integrated device on my mac.

Thanks for any help.

Steve