root@dhcppc47:~ # pkg info -d xbmc
xbmc-13.2_5:
xdpyinfo-1.3.1_1
libXtst-1.2.2_2
libXrandr-1.4.2_2
pango-1.34.1_7
libXt-1.1.4_2,1
libXmu-1.1.2_2,1
fontconfig-2.11.0_3,1
libmicrohttpd-0.9.37
tinyxml-2.6.2_1
libxslt-1.1.28_4
libcdio-0.92
hal-0.5.14_27
libssh-0.6.1_1
freetype2-2.5.3_2
samba36-nmblookup-3.6.24
samba36-libsmbclient-3.6.24_2
avahi-app-0.6.31_3
libvdpau-0.8_1
libva-1.4.0
librtmp-2.4.20130923
libmpeg2-0.5.1_6
libcec-2.1.4
libbluray-0.5.0_1,1
libass-0.11.2_3
python27-2.7.8_5
python2-2_3
sdl_image-1.2.12_6
py27-pillow-2.6.0
png-1.5.18
mesa-demos-8.1.0_2
libGLU-9.0.0_2
jpeg-8_5
jasper-1.900.1_14
gtk-update-icon-cache-2.24.22
glew-1.11.0_2
gdk-pixbuf2-2.28.2_1
curl-7.38.0_2
yajl-2.1.0
sdl-1.2.15_5,2
pcre-8.35_1
libplist-1.11
libltdl-2.4.2.418
glib-2.36.3_4
dbus-1.8.8
boost-libs-1.55.0_4
sqlite3-3.8.6
py27-sqlite3-2.7.8_5
mysql55-client-5.5.40
libiconv-1.14_4
fribidi-0.19.2_2
enca-1.13_1
lirc-0.9.0_6,1
taglib-1.9.1_2
libvorbis-1.3.4_1,3
libshairport-1.2.0.20310_1
libsamplerate-0.1.8_5
libmodplug-0.8.8.5_2
libmad-0.15.1b_5
flac-1.3.0_2
lzo2-2.08_1
atk-2.8.0_1
I'd guess the multimedia/xbmc port incorrectly assumes that installing the lang/python27 and lang/python2 ports would also install /usr/local/bin/python. This is no longer the case because the Python ports are now split so that multiple versions can co-exist. The port would need to depend on lang/python to have /usr/local/bin/python installed. Contact the port maintainer to have the problem fixed.
Not sure how to go about that...
I'd send this link to the port maintainer assuming he would understand what was involved, but I don't know how to do that.
Maybe. The radeon driver from x11-drivers/xf86-video-ati supports that card.