upgrading FreeBSD

[Miketack at aol.com]

We currently have FreeBSD but we're running out of hard disk space. How can  
we get a larger hard disk? Is it possible to put the old hard disk info on the 
 new hard disk? Also, should we upgrade our software to your newer release? 
Ours  is 5 years old.
 
Our office is located in southern New Jersey (just outside of  Philadelphia). 
Is there anyone in the area who can help us out with this.
 
Thank you.
Mike Tacknoff
609-820-6656