The full FSM can be downloaded in PDF form for a $20 one day fee from
http://www.nissan-techinfo.com/infiniti. You need to have a decent speed Internet connection, since you will be bringing over some tens of megabytes of files.
Two things to be aware of:
1. You have to download each file of the FSM section separately, so don't forget anything - there are multiple files. I'd also use the time to get the newer 2007 model files too (into a separate directory, of course!). Since you have to bring over each file separately, find the time to do this at one session (best to prevent yourself from forgetting something).
2. Remember to get all the TSB files too. These give you information that was released after the full FSM was released. I tend to get on to the site every year to get the ones that were released after my last download.
Enjoy!
Z