Check out: http://flac.sourceforge.net/
This is the offical FLAC project. You can download an installer that includes all the command line tools for encoding, decoding, tagging, etc. as well as a small graphical front end. Using the FLAC frontend, you can just drag files into it and hit Encode.
Also, there a lot of 3rd party tools that can do the job: Winamp, dbPoweramp, etc.
If you are ripping your CDs to wavs, you might want to look into dbPoweramp or EAC which can do accurate ripping and convert to FLAC in one shot.
Message Edited by Skinjob on 08-29-2008 01:05 PM
Message Edited by Skinjob on 08-29-2008 04:20 PM