I find Google Translate frustrating. Why do I need to tell it what language my text is in, or what language I want it translated to? Can’t it work it out?
http://bluebones.net/translate/ is a wrapper for Google’s translator that automatically detects the language of source text or web site and translates to your language (based on browser settings).
You might also find this bookmarklet useful. It translates the page you are currently on into your language. Drag the link to your Firefox toolbar: Translate
I was inspired to do this by Mike Linsvayer’s post on the same subject.