Well, my design skills are horrible, but since I was playing with the idea of creating an application to design and print work outs, I stumbled against the limi

Well, my design skills are horrible, but since I was playing with the idea of creating an application to design and print work outs, I stumbled against the limit of buying my own icons as many exercises are very specific and there is no complete set out there. So, I started to use Inkscape and there are many very good tutorials out there. Check how to go from a sketch to an icon (for example: http://kalaalog.com/2007/10/11/dragon-sketch-to-vector-art/ http://kalaalog.com/2007/10/11/dragon-sketch-to-vector-art/). Of course that's not "professional" web design, but it's a start. If you start studying this, feel free to ping me for questions (you'll probably know more than me soon enough I will ping you for questions).