> As an X11 user, I think that select/single button paste is one of the better features of the platform. I miss it terribly when on windows.

As a compulsive text-highlighter, I've always found it useless. Between that and not being able to copy-and-replace with it, I'd say I've used it by accident at least as often as I've used it on purpose. And I've been using X-window systems since before 3-button (no scrollwheel) mice went all-but extinct, so I should have been able to get used to it if I was ever going to.