An RSX is a great car but a far cry from a Maxima. Have you looked at the TL's?
When you get a car like an RSX its really hard to leave it alone. You can mod pretty much every aspect of it. My next vehicle will be one with not many mods available simply because I need to spend money in other areas
.
It's up to you and what you want, but I'd probably go for an Anniversary Edition Maxima
.