The P100 is a toy, get the w1!!!
It has manual mode so you can take long exposures or adjust your depth of field and such. Also there is some great add ons such as a telephoto, wide angle lens, etc, and probably some filters for you to use. Although its just 3mp I would get it for the manual features, that usually makes a difference on how the pics look like.
Its a step down from the camera I got which is the F717. Takes GREAT pics if you gonna use them for your designs. I know you gotta love macro pics!
If you don’t mind spending more money or if you are serious about photography, get the 8mp F828 or a DSLR like a Cannon Digital Rebel.