Well it's worlds apart from the EVO. More of a refined luxury vehicle, that can carve corners if need be (especially the coupe). I thought about the EVO myself, but after doing some research, I've found that the EVO engine just doesn't compare to the G35/350Z's 3.5L. It's ranked one of the 10 best engines of all time.
The interior of the EVO also didn't appeal to me (my wife has a base model lancer ES). The G35 is more about getting you there in comfort, safety, and style.
Not sure on dealer incentives, however Infiniti has a winter sale's event every year...you might get a decent deal. Though I'm not a fan of leasing, the G's resale is very high, so you'll be in a good position at the end of the lease-provided you stay within your mileage. I don't know what else to say...I love my car.
Check out Infiniti's website for details:
http://www.infiniti.com/g_sedan/index.html