I think you should note that even though you can download free logos from LogoInstant, you cannot use them for a business, or copyright them, and it is not a good place to find custom designed logos. For more information read LogoInstants own terms and conditions or to find out why you should not use a LogoInstant logo read this article:

http://www.joshuardavis.com/2009/01/logoinstant-is-giving-away-free-logos.html