Mine shipped from Amazon as well, but as usual it probably won't get here until after 5pm on Tuesday.
UPS sucks around here. They always deliver late in the day... FedEx on the other hand will have it here before noon.
I wish Amazon gave you a choice. That's why I went to Wal-Mart to get Harry Potter when the books came out... even though I hate Wal Mart with a passion. That was an entire day of reading I didn't want to miss! Maybe they should change it to "end of release date delivery!"