I also use Google Chrome as my default browser. I find that it is a slim application so it runs pretty quickly. I also like the ability to sync bookmarks across computers.
I am always trying out new apps. Right now, I am obsessed with Clearly. It makes websites and blogs easy to read and then I can clip them to Evernote for offline viewing. Also, since I am reading quite a bit on my computer now a days, it takes some of the distraction away from the page.