You can find SSIS 2005 Custom Tasks and Component Samples at CodePlex. At the same location you can find SSIS 2008 samples. How cool is that?
The samples include source code in VB.Net and C#. They serve as a decent starting place for developing your own SSIS custom tasks and components.
Free registration to CodePlex is required to access the samples.
:{> Andy
You may also check the public SSIS scripts repository at:
http://www.cozyroc.com/scripts