I'm not going to act like I understand all of the arguments for or against an Old Earth, but I found this man's presentation to be very enlightening. The basic idea is that secular scientists bring a lot of assumptions into their dating methods that aren't necessarily true. Regardless of the arguments for or against an Old Earth, I will always choose to be a fool who has faith in God's word over man's wisdom. He knows more about creation than any man, because He did it! We can work hard to figure out when the Earth and the Universe began, but our methods are ultimately as flawed as we are.
Enjoy!
Enjoy!