I do a bit of drawing, not as much as I'd want to these days though. Like you I tend to suck if I don't have a reference to go by.
Though I can't really post drawings from my favourite artists as they all do painting for the most part, so I'm gonna link to one of my favourite artists and greatest inspirations;
Dan Luvisi.
Seriously, check out his LMS book.
Might post some of my own stuff later.