Fluke is a nice software
Though FLAC is open-source and royalty-free format, it is not a compatible audio format with iTunes and with all Apple devices.
In order to import FLAC to iTunes, a recommended solution is to convert FLAC to Apple friendly audio formats so that you can play FLAC with iTunes, iPad, the new iPad 3, iPhone and iPod, etc.
If you care the quality of the output audio, converting FLAC to Apple Lossless audio is recommended.
If you do not care about the quality of the music, you can convert FLAC to MP3, a versatile audio format across system and devices then import the converted FLAC files to iTunes.
Just google search Step by Step Guide on How to Import FLAC to iTunes, you will find a nice simple solution