If I have any projects that need design work, I like to browse contest sites like Logo Design, Web Design, Design Contests | 99designs.com for anything that I can use. I'll usually browse the contests that are already complete and search out designs that made 2nd place or below, but didn't win. You can usually get this work from people for a steal. It's usually throw away stuff, but if you catch the person in time after the contest you can get them to happily sell you their work. I've even found designers on these sites to do customized work for much cheaper than you'd pay for a contest. Some of this stuff like the website design you can get for next to nothing - find a Domain name to go with it, slap them together and turn a very quick profit.
Thank you Warriors! You've been a very valuable source for me throughout the past few years.