Same here. I run Fedora, and I haven't had trouble with any of the above in years - it just works (though I don't watch many DVDs on my laptop, so, to be fair, I can't comment there). Fedora has come a long way in terms of networking and video, and I've heard that Ubuntu has as well. In fact, I've found that some of my cellphone videos play fine on my Fedora laptop, but don't work at all on my wife's Windows 7 laptop. When I moved away from Windows, I piloted with a Mac for awhile, and while the UI was pretty, it drove me absolutely nuts. The editing keys and shortcuts were different for every application. Also, Apple has no concept of a true docking station/port replicator, so every time I had a meeting, I had to unplug and re-plug ten different cables. I also had to carry around a bunch of extra accessories, like a dongle just to connect to a projector. It was so frustrating that when I was told that I had to choose, I happily sent the Mac packing and have used Fedora ever since.

It would be nice if I could get Quicken and Word for Linux, but I found that Word on Mac converts strangely to Windows also, and in some cases worse that OpenOffice, so I didn't see that as a worthy advantage.