2 quick questionsFollow

I don't use add-ons. This is due entirely to the fact that I am too lazy to install and upkeep them. As far as your soulshard question, you have three soulshards at max, and they are displayed underneath your name in the upper left hand corner of the screen. As you use them, they will go black, but when they are present they will be pink.

a good addon for what your looking for is DOTimer, it will set up a bunch of bars for each of your DOTs on each mob and keep track of your CDs as well, I don't usaully use it as a destro lock omnicc is all I need for CDs and immolate and bane of doom are about the only DOTs I use so not much to keep track of

Both SBF and Raven can track Dots on a Target or Focus. The problem comes if what you are trying to do is track Dots on multiple targets. In SBF, you basically define a Target Debuff and Whitelist it. I Display an Icon with Counter just above the action bar button, so I can easily see when it drops off.

I'm sure I could do the same with Raven, or show a bar if I wanted. Again, the problem is if you have a Target defuff defined, you will no longer see it indicated when you switch to a different target.

You also could have a target frame with something like XPerl, and move it wherever you want, displaying your Target debuffs there.

A warlock specific addon might give you more what you are after.