If you haven't already read "The Host" also by Stephanie Meyers, It is about aliens invading human bodies. Sounds bad, but it really is pretty good.

John Grogan - Marley and Me.....Fantastic.

Diana Galbaldon - Cross Stitch Series. It is about an English lady holidaying in Scotland in about 1947, where she finds and goes through a stone circle and is transported back 200 years. There are 7 books so far in this series, so if you can get over how the author writes, it isnt actually a bad series.

Kathy Reichs - Writes about Forensic Anthropologist Dr Temperence Brennan. Crime series
Patricia Cornwall - Writes about Forensic Anthropologist Dr Kay Scarpetta. Crime series

John Marsden - The Tomorrow Series. Initially written for high school kids, but i found that adults will enjoy it as well

Matthew Reilly - His last three books - Seven Ancient Wonders, Six Sacred Stones, Five Greatest Warriors - Would be right up you alley - It involves Pyramids, and ancient stories. His other books are really good too!

I hope this has given you some ideas. I cant think of any more of the top of my head.

Cheers