Get a PC, mine hasn't locked up yet. It only crashes if I Alt-Tab without pausing first.
On another note, I found out that I won't be able to replay Skyrim on a new character. I tried creating a new one, but then I realized just how much **** I'd have to do again and went back to my Battlemagethiefassassinwarrior.
I've finished the Dark Brotherhood, Thieves Guild and Imperial Legion story arcs. Now I just need to finish the Companion and Dragonborn arc and then I might go check out the Mage and Bard College arcs. I know the game isn't over - ever - but I'm starting to feel like I can put it down and move on without feeling like I've only played half of it.
Just in time for the new internet and SWTOR as well.