I need to reduce a pic size, and convert mp3 files for free. dont like to do that in iTunes or in iPhoto, I want to do that fast with a simple app. any ideas?

I made an automator app for resize pictures, but everytime I use it the apps lunch and takes time to do that. I also did other for mp3 but itunes need to launch then process and its boring and time spending.. I need simple apps that do that job fast. anyone?