Convert FLAC to WAV w/frontend?

[Dragon192]

Howdy...

I am contemplating moving from Windows XP to Ubuntu.  I use the PC to 
convert FLAC files to WAV using FLAC from sourceforge.net with a 
third-party frontend so that I can open the program (frontend) from 
the desktop and convert files in a batch...

What can I use in Ubuntu that will act the same as the Windows setup?

I am new to scripts and command line stuff....I like things easy...(I 
am primarily a Macintosh user and only use the PC for a few odd 
things as well as the aforementioned converting}

TIA,

Ken
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