Yes, get 2007!!! Way new interface, wow. I got lost in it. I was like, "WTF did the Save As... button go?" I found it. Office 2007 has a "Start" button also like Vista too. The Office Start Button is on the top left side. When you click on it, it gives you more of the general options that you would typically find in the menu buttons.
The new Ribbon interface is neat, kind of, once you get use to it. The menu doesn't pop down anymore revealing more options. A ribbon is shown instead when you click on the new menu feature and spreads across the screen. Things are moved around and it's tough to find things. There's a huge learning curve when you upgrade to 2007 because it's not like 2003, at least in my opinion anyways. But in time, I'm getting use to it so it's all good. It looks nice because it's new. The ribbon menus make it easier somewhat because the options are all laid out for you instead of clicking on each menu and finding it.