From what I hear, the Aggies have signed a kicker for the 2010 season, Tyler Stampler from Ventura Community College.
Here's Stampler's profile on rivals.
Kyle Hughes had a pretty decent season all around last year, but he carried a heavy load. He punted, handled kickoffs and field goals.
The apparent addition of Stampler will likely allow NMSU to move Hughes strictly to punting duties, assuming Hughes is eligible for the 2010 season.