Ya know what? Between reading some posts, and installing something called an
Analysis Toolpak, it worked out! Should have delved in a little deeper
before asking. Thank you, though!!
The Analysis Tool Pak (ATP) in an add-in that provides dozens of
addition functions. If you have the ATP loaded (go to the Tools
menu, choose Add-Ins, and put a check next to Analysis Tool Pak),
you can use the MROUND function to round to the nearest nickel.