Best US international keyboard layout for a pismo?

[MaX]

Hi all,

a friend of mine have a pbook pismo G3 with US layout, but hi need the 
characters like "ñ, à, é, ü...." too.

i have try to put in /etc/X11/XF86Config4 the option:

	option	"XkbLayout"	"us_intl"

but

1. Gnome warn me that there are a conflict with the the gnome conf and 
X11 conf.
2. don't work. :(

the idea is to have a kb layout like osx:

alt-n-n = ñ
alt-e-a = á ....

...yes i can use xmodmap, but i think that gnome can have somewhat of 
better.

any idea?

best
MaX