Searching the Cheese board, I didn't find a board post specifically for Havarti and recently I enjoyed a Dill Havarti that I had never tried before. The HC Board has a thread from 2011 http://chowhound.chow.com/topics/820831 but here I'm looking for buying suggestions.
The Havarti I bought from Shop Rite had tiny wholes heavily laced with dill and it made for both a wonderful grilled cheese sandwich as well as flavoring a quick scrambled egg dish.
I know that the shop carries Havarti in a few different flavors; Cajun spice caught my eye.
Are there any special Havarti cheeses I should look into?