[quote author="tmare" date=1258549934]Thanks for the suggestions. The Grand Canyon is definitely on the list, I hadn't heard of the Meteor Crater, so I'll look it up and maybe we'll check it out. Anymore ideas? It looks like we are driving with two small kids, our longest car trip ever. I think we're going to leave a day early and spend the night in the lovely town of Blythe so we can split the drive in half.</blockquote>
Meteor Crater is east of Flagstaff. Unless you are into big holes in the ground made by dumptruck-sized rocks, it's not really that exciting.
If I may... I'd suggest turning left at US-95 and keeping on till Lake Havasu... they have a London Bridge there and something far more entertaining than anything in Blythe... a dam! Also, you're looking at splitting the distance more evenly, as stopping in Blythe means you're in bed by 4:30 PM.
<a href="http://maps.google.com/maps?f=d&source=s_d&saddr=Irvine,+CA&daddr=33.642063,-115.784912+to:Lake+Havasu,+AZ+to:Sedona,+AZ&geocode=FVnBAQIdeSn6-CnjQJFoDt3cgDE5mkpgdbV6pwFWwPDAIdh80x-Sknhu1xsYnRgDHEPtX4NH1KkAFewRFAIdoqlW-SkNsEL5MqEthzH9jmz6I8VIVQ&hl=en&mra=dpe&mrcr=0&mrsp=1&sz=8&via=1&sll=34.48641,-114.744335&sspn=3.630884,7.531128&ie=UTF8&z=8">A more scenic route</a>