You're welcome, and good luck. Have a look at this when you have time.

It has several good tips on power savings for battery apps:
http://ww1.microchip.com/downloads/e...doc/41200B.pdf

And this one too: http://www.ac-limoges.fr/sti_ge/IMG/...C_nanowatt.pdf

Also take a peek in the Electrical Specifications section of the data sheet.

It shows current required for various peripherals, oscillators, etc..