I personally think the Vamp system to be quite simple. Try playing Shadowrun or an old Paladium game.
With the Storyteller/WoD system, you take an attribute and a skill. That's your dice pool. To swing a sword, you use DEX+MELEE.
Most things have a standard difficulty of 7. Any die that is a 7 or higher is a success.
If you have a success, you succeeded. Extra successes equate to bonues, such as bonus dice for damage.
It used to be that sometimes you needed X number of sucesses to actually suceed at something. Which is silly.
"I rolled 3 successes, but didn't succeed." That has been eliminated in the new rule system, which is actually a little simpler and more streamlined.
Instead of needed additional successes for something particularly difficult, you lose or add dice to your dice pool for modifiers. And the difficulty is always set at 7. Like I said, modifiers just affect the size of your dice pool.
Roll a success, and you succeed.