Mine

lamusic ~ & cat /etc/make.conf
# These settings were set by the catalyst build script that automatically built this stage
# Please consult /etc/make.conf.example for a more detailed example

CFLAGS="-march=k8 -O2 -mmmx -msse -msse2 -msse3 -m3dnow -pipe -fomit-frame-pointer -fstack-protector"
CHOST="x86_64-pc-linux-gnu"
CXXFLAGS="${CFLAGS}"
MAKEOPTS="-j3"
ACCEPT_KEYWORDS="~amd64"

CPU="mmx mmxext sse sse2 3dnow 3dnowext"

MULTIMEDIA="a52 aac bidi cdda cddb cdparanoia corba daap divx dts dvdread eap-tls fame ffmpeg flac glib glitz gnuplot graphviz imagemagick jpeg2k matroska mjpeg mng mpeg2 mplayer optimisememory real realmedia rtsp shout skins stream svg theora transcode v4l v4l2 vcd videos win32codecs wxwindows xosd xvid xvmc"

KDE="kde qt3 qt4 xcomposite kdeenablefinal kdehiddenvisibility"

GLOBAL="acpi activefilter aiglx amd64 bash-completion bzip2 cjk emacs glibc-compat20 glibc-omitfp glitz gnutls java network pdf reiserfs ruby samba sockets"

VRAC="hardened dynamicplugin emerald flac inline iproute2 lzo mhash optimisememory perfprofiling pic prelude pyx rtsp sndfile snortsam swat szip tcl tcltk threads timestats usb userlocales vim-syntax vim-with-x visual vlm"

DELETE="-arts -berkdb -cups -esd -ldap -gdbm -gnome -oss"

USE="$CPU $MULTIMEDIA $KDE $GLOBAL $VRAC $DELETE"

LINGUAS="fr"
AUTOCLEAN="yes"
VIDEO_CARDS="radeon fglrx"
INPUT_DEVICES="keyboard mouse"
PORTDIR_OVERLAY="/usr/lamusic/portage/ /usr/bultom/portage/ /usr/geekounet/portage/ /usr/minefield/portage/ /usr/socket/portage/ /usr/git-drm/portage/ /usr/portage/local/layman/pok3d/"
GENTOO_MIRRORS="ftp://ftp.free.fr/mirrors/ftp.gentoo.org/ http://www.mirrorservice.org/sites/www.ibiblio.org/gentoo/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo ftp://pandemonium.tiscali.de/pub/gentoo/ ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo"
#SYNC="rsync://134.68.220.73/gentoo-portage rsync://rsync.us.gentoo.org/gentoo-portage rsync://rsync.europe.gentoo.org/gentoo-portage  rsync://rsync.gentoo.org/gentoo-portage"