For animating your central circle as well as the buttons around it ( and also making them round), you can use photoshop.For better results,use CS3 extended edition.You will be needing 2-3 frames for making an animated file and then you can loop them for a continuous animation effect.If you want an animation with hover effect, you will be needing to remove the looping.For making the side buttons round,just crop them using round selection tool.If you need more help me,ask me anytime..
