Incremental Load using SSIS package

Hi,

I need perform Incremental Load form OLTP application using SSIS package. There are different Source tables with ID (may be Primary Key), CreatedDate and ModifiedDate along with other columns. 

The requirement is to load the destination tables with new records and update the existing records (if any updated records are available)

Please suggest me best approach to implement this. 

Kapil Kaushish