I want to get a pretty cheap flyer/poster design made (basic, but more professional than something I could knock up myself). How do I go about doing this? Are there websites where freelancers and kids hang out to pick up little gigs like this? If so, are there any that stand out as reputable/ethical?

Google is absolutely rammed full of dodgy looking sites packed with Indians and Pakistanis willing to do things for $2, so I wondered if there's anyone with more knowledge of the scene that can point me in a decent direction.