Does anyone know any picture editing softwear?

I need something that wont cost anything and I would really like a softwear the can like do a black and white background and make soething in the background colorful?

I Honestly have no clue I was lookin for some myself. If ya find anything for mac let me know. Two places you could look though are:

If you have a MAC:

http://www.macupdate.com/

If you run Windows:

http://www.download.com/

I hope this helps some

roxio 9.

try Picasa 2 free from google