OMG - SQUEEEEEEE!!!!

First off, I have the bestest husband ever - love, love, love my lapsedagnostic ... Why?! Because he points me to stuff like this:

Best News Ever! Joss Whedon Spills Exclusive Deets on His New Series

Plumbing question

Has anyone out there replaced their entire toliet? How hard is it? Sealing, and so forth and so on. Any help/pointers/etc. is appreciated. Rather not pay a plumber if I can avoid it.