Pure Mac.

I've switched back to Safari, and I'm happy about it.  It integrates better with OSX than Firefox does.  Like the new button that allows me to select something in the web browser and then add it to my dashboard.  The other thing is that you can group together a bunch of your bookmarks on the bookmark bar into one and when you click it, it opens them all at once.  It's pretty useful.  

I've also switched to the Mail application.  Which is amazing.  It's nice to have all of my mail in one place.  Plus it has these really nice stationary, and I don't have to have a tab open at all times for gmail.  Now I don't miss any mail that goes to my IU webmail; it just comes there and I don't forget.  If someone sends me an e-mail with a date or a time, all I have to do is hover over it and click and it gives me an option to add to iCal.  It also does that with addresses, phone numbers, and the like.  It integrates with the address book.  Love it, love it, love it.

I'm really happy with Leopard.  I love spaces.  It keeps my desktop from getting cluttered.  Not that it was a huge problem because of the ginormous screen on this computer, but it is nice to have my applications in different spaces.  There is so much more about Leopard that I love, but I have to get back to what I was doing.