350z is an awesome car but so is the 370z as well best advice would be to try both and see what you prefer. When alls said and done only you can choose which you prefer. I have had both but love them equally. My wife has a 350z vert and it's great. I have a 370z
Just a little update, after my Mot I had some high flow cats fitted 200cel. The sound is awesome, no drone at all in my opinion. Can't post a sound clip as it doesn't let me lol.
I would get rid of the de cats really, they cause drone as has been said above you can try hfc's but stock cats would bring the drone down but also the noise. I have just fitted hfc to my gemini exhaust on my 370z and I get no nasty droning at all.