[Board Design Programs?]

I am looking for some pcb designing programs. Something simple to use and relatively cheap maybe even free  ;) Ive tried UltiBoard from electronics workbence but thats too complicated. I just want to design single layer boards. Any help?

[[ARTICLE] Build your own UV exposure box]

for the 5V/1A power supply for the timer i noticed that it has an input voltage of 220V. Im assuming this is a Euro based tutorial so if i was just to change the transformer from a Input 220V output 5v/1a to a 120 in and 5v/1a out it still would be the same yes? Also the UV Lights where am i likely to find them? The lights are regular black light uv lights right?