dota_minimap_hero_size 700 - will make the size of the hero dot on the minimap as big as you want. Default = 600.

dota_disable_range_finder 0 - by default you only see the range of spells when you hover your mouse on the spell icon. With this set to 0 it will show you the range when you actually click to use the spell on someone. Default = 1.

dota_always_show_player_names - 0 will disable, 1 will enable player name on top of health bars. Default = 0.

dota_hud_healthbars - 1 will make your health smoother without the lines you see on health bars (the blocks in the health that divides at around 200 life per block). 3 will enable it back on and 0 will make all health bars disappear, the others do nothing apparently. Default = 3.

dota_unit_use_player_color - As the command suggests, it colors it player either individually or an unified color by team. 1 Enables individual colors, 0 Team color. Default = 1.

dota_player_units_auto_attack - This is in the settings, but I find it too darn useful. 0 Will stop auto-attacking and only attacks IF you click to attack, whereas 1 will auto-attack at all possible times. Default = 1

dota_force_right_click_attack 1 - This will enable right click deny!!!!!!!!!!

net_graph - 1 show ping, FPS etc on game window or
cl_showfps 1
*net_graphpos from 1 to 50 to change graph position