I finally got fed up with Vista and decided to switch over to Linux Mint 14 as my primary OS...
...with the intent of never going back.
Will I survive?
Ok, I haven't given up Windows entirely. Wine and VirtualBox are in play. Both look promising. Also, I've mounted my Win NTFS partition read/write. (Ha, you kids have it easy now! Why, back in my day...)
The cause of my switch? WinAVR is 3 years out of date and doesn't support the ATtiny84A of which I just bought 3 to test my ATtiny24/44/84 target board. In frustration I built the entire AVR toolchain from scratch on Mint following Lady Ada's tutorial.
My first pain was the awful, too-twitchy mouse. Got that fixed with some xinput/xset magic.
Losing Picasa sucks. Either digiKam will have to do or it's Picasa in Wine (as Google originally shipped it for Linux). I wished I could see what pictures I've uploaded to Picasaweb.
LTSpice works great in Wine. Eagle is fast but with a niggling key binding issue.
Chrome, GIMP, no problem. I want Notepad++ back.
I'd just fallen in love with TortoiseSVN... thankfully, RabbitVCS works very similarly. Although Mint/Nemo isn't officially supported, it works a-ok with a little trickery.
Probably my biggest regret/pain is having just paid for Carbonite. That was the one thing holding me back from Linux and the one thing tempting me to go back to Windows. I hate to waste that money.