Actually, if you have GNOME installed, you already have the programme.
I used to use Kile to edit my LaTeX sources, but after I found the LaTeX plugin for Gedit, I haven't used anything else.
get the plugin from:
http://live.gnome.org/Gedit/LaTeXPlugin
unpack it to $(HOME)/.gnome2/gedit/plugins
install rubber (the rpm found on rubber.sourceforge.net works fine on FC6).
Restart Gedit.
Activate the LaTeX plugin (you may have to restart it again, I'm not sure, but I doubt it).
Work that source.
Installing rubber is optional, but highly recommended, as it removes the need for makefiles and build scripts for tex projects -- and the latex plugin uses it too. compileing is fast and just a mouseclick away.
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