Starter help on gconf

[Zoran Rilak <wayward tirion test net>]

Greetings everybody,

I've recently started learning GTK+/GNOME programming and my testbed
project is a user-friendly interface to pppd, kinda like kppp. I'm not
sure this is the right place to ask gconf-related questions so if I'm
talking in the wrong room please direct me out. :) Anyway, I could use
some advice about using gconf to store my application data. The
information has to be stored on a per-user basis, with one permanent set
of information (app. properties - modem config., some toggles etc.) and an
array of zero or more sets describing connections.

1. Is it a wise decision to use gconf in the first place?
2. Should I use external sources (something under ~/) or store data to
client database, however it may be configured?
3. Do I need schemas?

Thanks for your time and sorry again if I missed the mark with this post.

Best,
Zoran