I've been a member of Renderosity pretty much since its inception. Its a great community, populated by a bunch of folks that enjoy helping the new folks, with a great appreciation for the graphics art.
I've been dabbling with a few computer graphics programs for a couple of years. No formal art training, or graphics training, all self taught with the help of plenty of people on mailing lists and the internet. Still in the learning stages and doing plenty of practicing... Until I feel confident in my art and reach some consistency, guess I have to stick to my day job of fixing stuff :)