yup, i second what ashrumm and pheep said before. bumskees "digital painting" thread is really cool. i already did my apple there. ("an apple a day...") it's real fun, but i decided to stick with the traditional for a while...
maybe it would be good to start doing black and white stuff first? getting the feel for the digital and mainly working on values instead of worrying about the colors... but that's just a suggestion... what kind of tablet do you have?
keep it up! cheers,