I would suggest casting rod for almost all flipping situations. I personally finesse flip lightweight jigs with spinning rods, but that is another story.
It really depends on what type of flipping you want to do as far as rod selection goes, but here are some suggestions. I look for heavy strength and light-weight.
Kistler Flippin Stick
Quantum Smoke
Falcon
Shimano Cumara
As far as a reel goes, I prefer high speed for flipping deep and heavy cover because it helps get a quick turn with a good deal of line intake before a hookset. I stick with Quantum reels with a burner.