As said, when it comes to essential components of your car (i.e. suspension, brakes, etc), don't cheap out and go the eBay route. Tons of horror stories from guys getting selected parts from there. A small percentage of eBay sellers actually sell reputable products.

Since you have an '07 it's very likely your rotors are still like new. Some options later down the road are to get them resurfaced, Brembo blank rotors, OEM, etc. And the misconception of crossed AND drilled rotors is true.