This power saw is battery-powered, so no need to bother with cords and such. It has a voltage of 18 volts and would surely make a good addition to your toolbox.
From Data Powertools
Metabo KT 18 LTX 66 BL 18V 165mm Plunge Cut Circular Saw Body Only In MetaBOX
This product is also available at 2 unverified stores.