Thanks for all of the replies.

I am using two memory cards. One is in the internal compartment (4GB), and the other is in the external slot (2GB). I do have it set to use virtual memory. Does this drain the battery more then not using virtual memory ??
Also, I am not running any processor intensive apps on startup. I do use Wifi when I use the web browser, but I go to offline mode when I finish browsing.