What I did: 
-pulled up the xls file in arcCatalog and did "geocode addresses"
-saved results as shapefile
-added shapefile to arcmap
Now I have all of the locations plotted :cool:!  Is there a way to have it label each point with one of those "callout" boxes?  The excel spreadsheet has three columns: company name, city, and state.  When I do "label features" on the geocoded addresses shapfile, they just say "US_Cities".  I need it to say the company name associated with that city
Thanks again!!!!  I'm one step closer!:D