Firefox ~ Mozilla Foundation
*****
Available for: Windows Vista/2003 Server/XP/2000/ME/98, Mac OSX, Linux
Download: home page


Opera Browser ~ Opera
*****
Available for: Windows Vista/2003 Server/XP/2000/ME/98, Mac OSX, Linux
Download: home page


Internet Explorer 7* ~ Microsoft Corporation
*****
Available for: Windows Vista/2003 Server/XP
Download: home page


Netscape Navigator ~ AOL-Netscape
*****
Available for: Windows Vista/2003 Server/XP/2000/ME/98, Mac OSX, Linux
Download: home page

Safari** ~ Apple Inc.
****
Available for: Windows Vista/XP, Mac OSX
Download: home page


Avant Browser*** ~ Avant Force
****
Available for: Windows Vista/2003 Server/XP/2000/ME/NT/98/95
Download: home page


Maxthon ~ Maxthon International Limited
****
Available for: Windows Vista/2003 Server/XP/2000/ME/98
Download: home page

:)

[Notes]
* Internet Explorer 7 is available only for genuine Windows users.
** Safari is in public beta.
*** Avant browser has been known to be problematic on Windows Vista.