Windowblinds and Iconpackager are a must, perhaps this time you should highlight some of the programs which havn't quite been skinned to their full potential yet, such as Desktopx (maybe best desktop theme, and then a best widget/gadget category) or the new objectbar (when's that going to come out of beta and become a general release btw?); and a windows media player category would be nice as well.
Oh, and I really think you should create a new category "best skin suite", which must contain at least a windowblinds, iconpackage, logon, boot, and cursor; having a great windowblinds skin is awesome, but having a whole suite of matching skins is even better (a lot of entries in the last GUI olympics ended up making suites anyway, so I really think you should consider adding this as a category).
