Poses wise I use: http://www.posemaniacs.com/ to get ideas for poses, or else ill take a photo of myself and then try to draw that pose from the picture. Otherwise one of the things i used to do (and still do) is when im low on inspiration is i find a picture, photo, painting, sculpture, etc whatever and draw it. Like when i was going to art school we had to find a painting done by someone famous and then try to copy them. it helped alot with really looking at colors and shading especially but otherwise set some props up and try and draw them. use anything and everything, and make sure to draw what you see, not what you think you see. :)

def hear ya on the sketches thing, sure its fun to draw them everyonce in awhile, but sometimes its better to take those sketches and make them into masterpieces. Color is fun ^.^ Hope you find a way to keep enjoying making art.

thanks :)