I run the stoptech slotted rotors and my brother ran the stoptech or centric's(both slotted) on his truck that's basically your twish(ish). Both with Centric Posi Quiet pads. Both gained some great newfound braking power and both of us are very pleased with the kits we got from ModBargains.com.
StopTech Stage Kit 01-08 Ranger
Now...my brother went out and did the extreme brake swap(full cobra brakes), but he did notice a good deal of improvement. I REALLY noticed a good deal of improvement of stopping these steel wheeled 35's. And I came off of brand new rotors and pads and tossed those new parts on.