Chances are you don't need interior drain tile. That's just managing the water that shouldn't be getting into your basement.
Grading and possibly exterior drain tile is the way to go.
The plastic and the rock may not do anything extra. (depends.) The water may be coming toward the house 5 feet below the surface, not necessarily at the surface. What does the water do after it is directed away from the house? It seeps into the soil and back towards the house (*sometimes*.) The water has to get far away from the house before it's allowed to puddle.
Also, make sure the downspouts are either draining into clear drain tile or drain above ground away from the house.