Looking for a good & Free converter
 

I have some flac files I would like to convert to MP3. Most of the converters do one file at a time, while I want to do folders. Most of the ones I have seen are slow too. Anyone got any ideas?

FFmpeg

This would be able to do what you're asking, but can have a steep learning curve depending on your start point.

It helps if you mention what operating system you use.

If you use a Mac, Max from sbooth.org is excellent.

that would be Windows 7

Not free but very good! Very easy. Allows the best mp3 options.
FairStars Soft - FairStars Audio Converter

Stay away from their "pro" version. buggy. Has one good feature but there is a free utility for that.

When you need to use a cue file to split a flac, use this free util. It works great.
Medieval CUE Splitter (PC)

A very simple wav to mp3 converter I like very much but don't need anymore that is free:
http://home.arcor.de/ronnyh/Downloads/LamedropXPd.rar

I recommend v1.3.3. I have used other versions but this one allows the most Lame settings. You select the files and drag them to the large icon. That's all.