Mine

CFLAGS="-O2 -march=athlon64 -pipe -msse3 -fomit-frame-pointer -fweb -frename-registers -fgcse-after-reload -fno-ident -funit-at-a-time -freorder-blocks -freorder-blocks-and-partition -fgcse-sm -fgcse-las -fmerge-all-constants -combine"
CXXFLAGS="${CFLAGS} -fvisibility-inlines-hidden"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=both -Wl,--sort-common -Wl,-znow"
CHOST="i686-pc-linux-gnu"
MAKEOPTS="-j2"

PORTDIR_OVERLAY="/home/tim/overlay /usr/local/overlays/xeffects /usr/local/overlays/kernels_overlay /usr/local/overlays/toolchain_overlay /usr/local/overlays/emission /usr/local/portage"

USE="3dnow 3dnowext 7zip a52 aac acpi aim ao aoss apache2 audiofile automount bcmath bzip2 calendar ccache cddb cdparanoia cdsound curl curlwrappers cursors divx dvdread exo fbcon ffmpeg filepro flac flash fontconfig freetype ftp g15 gaim gd gdm gimpprint gphoto2 hardenedphp hddtemp icq ieee1394 imagemagick java javascript libnotify libsexy lm_sensors memlimit mhash mmx mmxext mng mono mozbranding mp4 mpd mplayer msn mysql nautilus ntfs nvidia offensive openssh pango pda php reiserfs samba sendfile sensord sndfile snmp sound sse sse2 svg svga thunar-vfs thunderbird tiff trayicon usb vhosts wma xscreensaver yahoo zip -kde -qt3 -qt4 -arts"

INPUT_DEVICES="keyboard mouse"
VIDEO_CARDS="nv nvidia"
LCDPROC_DRIVERS="g15"
ACCEPT_KEYWORDS="x86 ~x86"
ALSA_CARDS="intel8x0"
LINGUAS="en"

I_PROMISE_TO_SUPPLY_PATCHES_WITH_BUGS=1

FEATURES="ccache"
CCACHE_DIR="/var/tmp/ccache/"
CCACHE_SIZE="2G"

source /usr/portage/local/layman/make.conf