[flexcoders] Looking for examples tutorials code to learn how to draw on a canvas

[oneproofdk]

Hi guys

I am looking to make a Flex3 app. where I can "draw" on a image. 

Is there any good tutorials examples etc. out there - I havent really
been able to find any.

I found a Flash component ($199) that does the trick - but I want to
go Flex :-)
<http://www.flashcomguru.com/components/whiteboard/>

Thanks for any info you can share !

//Mark