If you are just getting started with BSD's, in my opinion, you picked one of the most difficult. I would recommend you look at OpenBSD to start with for the following reasons:
1) Everything you need to know is in the FAQ which is more succinct.
OpenBSD FAQ
2) The documentation in NetBSD is lagging - for example wireless configuration.
3) Your gnome desktop will be more recent version and there are several tutorials online and in these forums about how to install.