Hi again,
after a visit to microchip web site i discover PIC12F683 wich have 1 PWM + 4 ADC. It's also supported by PicBasic Pro V 2.45. So i think that's the most suitable for your application.

have a look to this
http://www.microchip.com/stellent/id...cName=en010115

They are available for cheap on Newark web site.

regards