It's always best to have a backup USB keyboard, go to the local office supply store and pick one up. Just a very inexpensive model will do the trick.
To learn how to troubleshoot with only the wireless keyboard please click http://support.apple.com/kb/ts3048'
Thanks much! I realized after i posted that i should try turning the computer off, then on again, and that worked.
It brought up the pairing box since the keyboard was in pairing mode.
Appreciate the quick response and will pick up an inexpensive one as a backup....luckily i have a MBP as well, but the keyboard is still a great idea!