Microsoft, I believe, has made a mistake. The new version of Exchange 2007 ONLY runs on 64-bit operating systems. As someone who has installed Windows 64-bit edition, I can say, "It sucks." Nothing works right. Drivers are jacked. Programs don't work. Microsoft expects everyone who runs Exchange to do so on a brand new machine with nothing else running on it.
I did have the opportunity to use the new Exchange mail server, and I am impressed with the new UI and improved productivity. But, we can not use it here at work because of the 64-bit nonsense. Additionally, they have yanked all the Exchange 2003 information. So I can't download the evaluation version of it. I am really getting annoyed with Microsoft these days.
I can't switch to Linux though. I am so invested in Microsoft. I am just sick to death of the whole thing. Maybe Microsoft needs to be regulated like a utility.