I switched to OS X from Linux and I have to say I'm not always sure I made the right decision.

What I gained: The hardware Just Works (almost -- my bog-standard USB 2.0 hub doesn't work). My PowerBook 15" is the Porsche of laptops -- the hardware is awesome. Moreover, hardware I buy is mostly supported by the vendor on OS X. I can play games and work in the same OS. I have never needed to recompile the kernel. iTunes is very nice.

What I lost: KDE is a more powerful UI. You can use the keyboard *or* mouse with ease. You have lots of useful configuration options. Apple gives you only a handful of options that tend to be insufficient for a power user. Konqueror is a better browser than Safari, though Safari is quicker and the interface is slicker. KMail is more powerful than Mail.app. Apple's X11 is buggy. It was *nice* to use an OS where the OS developers would actually answer your questions and you could follow their work on a day-to-day basis. It was *nice* to be part of a community that didn't believe in shareware. When configured correctly, Freetype does font smoothing better than OS X! There's more, but I don't want to rant too much.

Writing this has made me realize how much I miss Linux... :-) I wish I could install YDL without wiping and reinstalling OS X...

truhe: You've got it backwards. It's easy to mount ftp servers, smb shares, and tons of other remote filesystems under linux, and they will work with any application. KDE just makes it even *easier*, providing you with a unified interface to all file operations whether they're local or remote files, and you don't have to bother to mount the remote filesystem.