PseudoRealityX - just goes to show you havn't experienced true drifting. Its more than the powersliding your thinking of... Sure for beginners crap tires in back is good, but after a while you want pretty close to equal traction all round. It not just about shear power and cheap tires - I drive a corolla GTS with around 100hp with a open diff, and I drift it just fine.
If your good at drifting you'll be exceding the traction of all four tires, which will wear out those fronts fast too. at my last autocross event was drifting with azenis' all round - sure it wasn't the showy smoky drifting, But I was crab walking a little (it was at zepherhills...)
true drifting isn't powersliding around corners, its pushing the car past the limits of traction and still mantaining control.
OK enough of a drift lesson...
On another note, I've been running around with azenis' for a while, and I've found them quite grippy in the rain. Although I'm running a 205/50/15 - that may have a lot to do with it.
-Jeff