I know there are tons of various business logo design web sites out there that for a fee will get some designs for review and ultimately purchase rights for using the design in a business. Some run in bounty/contest mode- competing designers going after the work, others are set up with a structured fee basis where they ask for a set price and will provide a round of design samples and maybe a few changes or revisions.
Anyone work with a particular site that they found reputable and had good results with (I know a bit of the success rate is the fee you are willing to pay and the number of designers that take some time to submit "quality" work.) Any that failed and cost someone some money for little to show for the effort that should be avoided. (Maybe discuss off list if you do not want to reveal the failure publicly.)