I would like to add an additional calendar to be used solely for recording bills for payment and some other events.
This is to be and additional new calendar not already existing on another media.
Any suggestions on how to???

Interesting question and I'll be following any responses. I have ended up with multiple calendars in MobileMe when I want only one!

One of the cool features of IOS 4.0x is that it allows connection to multiple Exchange mailboxes...of course this OS isn't available yet for the Ipad..when it is available it will be baaaaaad.....it's really helpful in a business setting to have a shared calendar for employees in one Exchange account and a seperate personal Exchange account...but I have no idea how to do it without IOS 4....

Create a new Google mail account and then add it into the iPad via Settings. This will give you a brand new calendar that will sync in with yours. My Calendar app currently has two of my Google Calendars syncing in.

There are instructions on Google Help on how to add a Google account into the iPad.