(Update 25-Oct-2014: Slightly updated version posted.
Just installed conky and looked around for some cute configs. This one by asoliverez looked nice, so I grabbed it and started playing around.
It didn't quite work for all values, since I didn't have all the pre-requisite software installed. So I hacked it up a little bit, and came up with the following that works with sensors (I worked out how to do it using this guy's example as a template), nvidia-smi (since I've got an nVidia GPU installed) and my particular file systems setup:
File: .conkyrc
background no
font Sans:size=8
#xftfont Sans:size=10
use_xft yes
xftalpha 0.9
update_interval 5.0
total_run_times 0
own_window yes
own_window_type normal
own_window_argb_visual true
own_window_transparent yes
#own_windiw_class conky
own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager
# To make conky always on top, swap 'below' in above line to 'above':
#own_window_hints undecorated,above,sticky,skip_taskbar,skip_pager
double_buffer yes
minimum_size 220 5
maximum_width 220
draw_shades yes
draw_outline no
draw_borders no
draw_graph_borders yes
default_color CDE0E7
default_shade_color black
default_outline_color green
alignment top_right
gap_x 12
gap_y 35
no_buffers yes
uppercase no # set to yes if you want all text to be in uppercase
cpu_avg_samples 2
override_utf8_locale no
TEXT
${color white}SYSTEM ${hr 1}${color}
Hostname: $alignr$nodename
Kernel: $alignr$kernel
Uptime: $alignr$uptime
MB Temperature: ${alignr}${iconv_start UTF-8 ISO_8859-1}${exec sensors|grep 'Physical id 0'|awk '{print $4}'}${iconv_stop}
CPU Temperature 0: ${alignr}${iconv_start UTF-8 ISO_8859-1}${exec sensors|grep 'Core 0'|awk '{print $3}'}${iconv_stop}
CPU Temperature 1: ${alignr}${iconv_start UTF-8 ISO_8859-1}${exec sensors|grep 'Core 1'|awk '{print $3}'}${iconv_stop}
CPU Temperature 2: ${alignr}${iconv_start UTF-8 ISO_8859-1}${exec sensors|grep 'Core 2'|awk '{print $3}'}${iconv_stop}
CPU Temperature 3: ${alignr}${iconv_start UTF-8 ISO_8859-1}${exec sensors|grep 'Core 3'|awk '{print $3}'}${iconv_stop}
Fan 1: ${alignr}${hwmon 1 fan 1} RPM
Fan 2: ${alignr}${hwmon 1 fan 2} RPM
#Battery: ${alignr}${battery_percent BAT0}%
CPU: ${alignr}${freq} MHz
GPU Temp: ${alignr}${exec nvidia-smi | grep '. ..\% ..C'|awk '{print $3}'}${iconv_start UTF-8 ISO_8859-1}°${iconv_stop}C
Processes: ${alignr}$processes ($running_processes running)
Load: ${alignr}$loadavg
CPU1 ${alignr}${cpu cpu1}%
${cpubar cpu1}
CPU2 ${alignr}${cpu cpu2}%
${cpubar cpu2}
CPU3 ${alignr}${cpu cpu3}%
${cpubar cpu3}
CPU4 ${alignr}${cpu cpu4}%
${cpubar cpu4}
Ram ${alignr}$mem / $memmax ($memperc%)
${membar 4}
swap ${alignr}$swap / $swapmax ($swapperc%)
${swapbar 4}
${color gray}Highest CPU $alignr CPU% MEM%${color}
${top name 1}$alignr${top cpu 1}${top mem 1}
${top name 2}$alignr${top cpu 2}${top mem 2}
${top name 3}$alignr${top cpu 3}${top mem 3}
${color gray}Highest MEM $alignr CPU% MEM%${color}
${top_mem name 1}$alignr${top_mem cpu 1}${top_mem mem 1}
${top_mem name 2}$alignr${top_mem cpu 2}${top_mem mem 2}
${top_mem name 3}$alignr${top_mem cpu 3}${top_mem mem 3}
${color white}Filesystem ${hr 1}${color}
Root: ${alignr}${fs_used /} / ${fs_size /}
${fs_bar 4 /}
Files: ${alignr}${fs_used /files} / ${fs_size /files}
${fs_bar 4 /files}
${color white}NETWORK ${hr 1}${color}
Eth0: ${addr eth0}
Down ${downspeed eth0} k/s ${alignr}Up ${upspeed eth0} k/s
${downspeedgraph eth0 25,107} ${alignr}${upspeedgraph eth0 25,107}
Total ${totaldown eth0} ${alignr}Total ${totalup eth0}
Wlan0: ${addr wlan0}
Signal: ${alignr}${wireless_link_qual wlan0}%
Down ${downspeed wlan0} k/s ${alignr}Up ${upspeed wlan0} k/s
${downspeedgraph wlan0 25,107} ${alignr}${upspeedgraph wlan0 25,107}
Total ${totaldown wlan0} ${alignr}Total ${totalup wlan0}
(Text wrap doesn't work real well...sorry. It should cut and paste okay though if anyone is interested in it).
(Update 23-Dec-2013: Added option to keep conky "always on top").
(Update 27-Sep-2014: Fixed CPU bar always showing same % issue).
Looks pretty good sitting there over in the corner of the screen:
