Be aware of unofficial Jap imports when buying. Look up the differences between UK and Jap imports - you have been warned!
A 350Z is one of the lowest depreciating sports cars you can buy. Most owners of TTs and Boxsters have to add £5-10,000 worth of extras to get the spec that they want.
350Z come already loaded with most of the options you should need.
This site will provide all the info you will need about 350Z
http://www.350z-tech.com/zwiki/350Z-TECH