where can i find a used G35

Ok I've owned two G35s. You can check local classifieds but be prepared to get ripped off by dealers selling used cars (cars.com). Check local classifieds for private sellers.
Or u can check sites like autotrader.com or autobytel.com

l personally suggest:
1. G35driver.com ==> go to marketplace & used cars for sale. The guys r honest & u will find good deals
2. Ebaymotors.com ==> u can find killer deals. Make sure the guy has a good rating, contact him & follow ebay is rules.

Run a carfax before u buy.

There are a ton of those out on the market. I'd recommend trying the online site MyRide (MyRide.com). It has a massive listing of used cars all over the US. There are other websites also, as well as your local used car lots. With the low price of the G35, Infiniti sold a lot of them, making them easy to find second-hand.

l had a G35, look on ebay, l sold mine on EBAY, do not buy from a Dealer, there are many ways they can get you either on the sale of the car, your trade in or finance, you may think you get a good deal but they always get you. Good luck
By the way l sold my G with 56k and never not once it needed warranty repair. Awesome vehicle.

autotrader.com