I will more than likely continue to edit this post as I find additions. Hopefully, this will help you connect with some great talent to help you package your works of art in a manner that will attract lots of sales.
Karen Fowler http://quirkygurl.com/cover-art/ PreMade Covers NEWLY Added 9/15/11
Rae at: http://raemonetinc.com/
Tuesday at: http://dreaminginpurple.net/PurpleInkBlog/
Amanda at: http://razzdazzdesign.com/
Frauke at: http://www.crocodesigns.com/
Kim at: http://www.hotdamndesigns.com/
Dara England http://mycoverart.wordpress.com/ *Not currently taking custom orders but does have some premades
Peter Ortiz: http://standalone-complex.deviantart.com/
Glendon Haddix (http://streetlightgraphics.com/
Elizabeth Sharp (http://sharpcovers.blogspot.com/)
Christopher Steininger: http://www.partzero.com
J. Simmons: http://www.jsimmonsillustration.com/
Stephanie Mooney: http://www.stephaniemooney.blogspot.com/
Christine DeMaio-Rice: http://flipcitycovers.blogspot.com/
Tara Shuler: www.tarashuler.com/cover-design-service/
Becky Weaver - http://missninjaart.com/
Ronnell D. Porter - http://www.wix.com/ronnelldporter/design
Becky Weaver - http://missninjaart.com/
Ronnell D. Porter - http://www.wix.com/ronnelldporter/design
Kathleen Valentine http://www.valentine-design.com/
Jeroen ten Berge: http://jeroentenberge.com/
Carl Graves: http://www.extendedimagery.com/
Robin Ludwig Design (http://www.rldprint.com/
Nathalia Suellen (http://ladysymphonia.com/
Claudia McKinney is amazing (http://phatpuppyart.com
Malcolm McClinton: http://www.wix.com/hangedman/hangedmanstudio
Kimberly Van Meter https://www.facebook.com/media/set/?set=a.10150144973498947.280208.747178946&l=c406b727d6&type=1
Gary Val Tenuta : http://www.bookcoversandvideos.webs.com/