Just FYI, I recently posted an MS Connect feedback item on this very topic, asking for a case-sensitivity option in SSIS Data Flow components: https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=339069

The thinking is that even if some DBAs or developers think case-sensitivity is wonderful, others should be given the option to turn it off.

At the same time I also posted a second issue to Connect asking them to fix the fact that an SSIS developer must learn at least three different data type systems (!) As far as I'm concerned they should adapt SSIS to use a single type system, preferably the SQL Server data type system that, as DBAs and SQL developers, we're all already familiar with: https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=339068

If you agree with these suggestions, take a moment to vote for them over on Connect. The more people who vote, the better chance they'll do something about it.