I create cool-looking skinned installers in NSIS and Inno Setup: http://graphical-installer.com/

Visual Studio (2005/08/10/12/13) addin for creating NSIS and Inno Setup installers with .vdproj import: http://www.visual-installer.com/

C/C++/C#/Delphi programming: http://www.unsigned-softworks.com/