Circuit board for flashlight - need help

[makowka]

Hello to all board members

May name is Simon. I would like to built a head-flashlight witch such bulbs:

http://www.conrad.pl/%C5%BBar%C3%B3wka- ... &pi=720183

Supply 3,5V, 200mA. I would like power it through 3 AAA batteries (3x1,2V), connected in parallel. The batteries would be rechargable ones, so I think, there is a need for additional components to stabilize the power supply. I want to apply two red and two green lights, so there must be a possibility to switch between the two groups of lights, turning the whole thing off and on. I have no idea of electronics, but know some fundamental laws. Could someone please help me to design a circuit for such a flashlight?