I setup NeedToKnow to track pretty much everything. You can configure it to watch your DoTs, self-buffs, CC timers, etc.

If you look at Optec's video of Tot4W, you can see how he's used Power Aura's to track his ISF buff. It's ummm . . . . Pretty idiot proof.

Personally, I use Elkano's Buff Bars. It's configured into groups to show DoT's on my target, General buffs in the corner, and trinket/talent procs and buffs like ISF, Empowered Imp, Molten Core or Soul Swap where they're easy to see.

I'll try to post a screen when I get home.

That's my biggest issue - keeping up the damn iSF buff. Although I've messed with Power Auras, I really need to get that figured out - I have seen the video mentioned by Revynn, I just need to get around to actually setting it up...

I use PowerAuras for this. Create a tracker for a buff and turn on the timer option, then move them to a portion of the screen that will be noticed but not in the way.

I use Soulfired. It's easy to configure and pretty much idiot proof at keeping the player informed that the ISF buff is either missing or just about ready to fall off. Around the time when the buff time equals the cast time of Soul Fire the mod will start giving audio cues that sounds like sonar pings to recast Soul Fire and continue to do so until SF is recast and the buff refreshes.

ForteXorcist can track it in exactly the same manner as it tracks DoTs which I find works rather well, and in fact trivializes ISF.

Yes I did just said trivialize ISF. If you find it hard you are doing it wrong.