If you want to check out the latest design tools in the works...

"Acrylic" (code name) is the professional design program that brings together the richness of pixel-based painting and the performance of editable vector graphics for a more fluid and flexible creative workflow.

http://www.microsoft.com/downloads/details.aspx?FamilyId=46CEF4B1-7E80-474F-AECD-ACB255902B82&displaylang=en