Depends what you want to see.
ESO 325-G004 is allegedly a lensed galaxy.
see
http://www.sciencedaily.com/releases...0207093405.htm
It is mag 14. It doesn't show any arcs however.
Here is an image of a lensed quasar by a very good amateur imager
http://www.perseus.gr/Astro-DSO-QSO-0957+561.htm
I'm not sure what the mag of the brightest arc is.