Is there any free program that lets me..

[madcat2]

Is there any free program that allows me to convert .wma files in to .mp3 or .wav?

 

[Samuraid]

Yes, DB Power Amp is one I have used that is reasonably straightforward:
http://www.dbpoweramp.com/dmc.htm

If that latest version (trial) is missing some functionality you need, please contact me and I'll send you an earlier version that is free and fully featured (and legitimate, as the author gave out the older version freely).

 

[Kaitech[SanD]]

Actually, Goldwave is better, if you know what you're doing you can also shrink the size without losing quality.

 

[madcat2]

Goldwave is 35 $ 0_0

 

[Kaitech[SanD]]

It's free actually... Check out my tutorial...

 

[brad.dude03]

USE AUDACITY.

It's the best, and it's 100% free.