I have a big favor to ask regarding video encoding

I have been trying to convert two FLV files to anything that iMovie will recognize... Avi... mp4... anything... I can't find a free mac program that will do it.. I just really would appreciate it if someone could convert these for me. They are both less than 5 seconds long so they are small files. I could email the files to anyone that thinks they could help me. If anyone would be up for this please email me at [email protected] or respond here. I am using these for a montage and I will put your name in the credits if you wish. Thanks very much!!