For some time now, I've been meaning to make the transition to learning traditional characters. To this end, I created a list of traditional variants of the 5,000 most commonly used characters.
The list has 1,890 characters. You can find it here: http://www.skritter.cn/vocab/list?list=agtzfndyaXRlLXdheXIWCxINVm9jYWJMaXN0SW5mbxi1_rVZDA
Note: If you have been only studying Simplified, but want to preview this list, you must first change your study settings to view the traditional characters. In Account settings, Study settings, you must set "Character Style" to Traditional. If you want to continue only studying simplified, make sure after you preview this list you return to your study settings and set it back to "Simplified."