How to change the default path

[L. Cranswick]

Sorry about this query - but how do you
change the default path in FreeBSD for
all (including root) logins?

I want to swap /usr/local/bin and /usr/bin
but cannot seem to find the file that sets 
this.

Thanks in advance,

Lachlan.

-- 
Lachlan M. D. Cranswick

Collaborative Computational Project No 14 (CCP14)
    for Single Crystal and Powder Diffraction
Daresbury Laboratory, Warrington, WA4 4AD U.K
Tel: +44-1925-603703  Fax: +44-1925-603124
E-mail: l.cranswick at dl.ac.uk  Ext: 3703  Room C14
                           http://www.ccp14.ac.uk