happy damn friday people;

I used to have a leaky rack and the pump was run dry a lot.
Occasionally it makes a grinding/vibrating noise when I turn the wheel at low speeds.
Also, I have noticed it gets quite heavy when braking/turning on the approach to the roundabout.

Is it nackered? What about an electric one? I like the idea of an electric one the most if I am replacing it - how much? from where? and how easy to fit?

Thankyou all for the gen.