The stupid GameStop site makes me reset my password every time I try to check out, even if I'm able to log in to view my account info normally. After I reset my password, I was able to get in and add to cart, but proceeding to checkout made the site crash and give me a link to return to the home page. After a few rounds of that, it looks like the entire site is dead now. :| I guess its just as well. They charge like $5-7 for the slowest shipping speed.
Looks like I can get the main site to load, but any attempt to interact with the cart results in a long delay, then a crash. Good times!