Guram Kajaia

This is multilingual text widget, which works with qTranslate plugin. 
You have to install qTranslate plugin before you use gText Widget. 
This plugins requires at least qTranslate 2.0 version. 
After installing gText Widget, you will have different input boxes for languages, which you have enabled with qTranslate.

gText Widget

This is multilingual text widget, which works with qTranslate plugin.

Louy Alakkad

This plugin gives you the ability to run the site in a language (Arabic for example) and use the admin panel in another (like English).
Just go to Settings » General and choose your language.

Admin Locale

This plugin allows you to change the language of the admin panel without changing the whole site language.

gText Widget vs Admin Locale