Domart near Ya Beleş in Alsancak stock them.
To check whether your existing pans are suitable for use wiith a 'standard' induction hob, you can see if a magnet sticks to the base of each pan - if it doesn't, then that pan is not suitable for use with an induction hob!
Recently manufactured pans may have a variety of symbols on the bottom, indicating which type of hob they can be used with.
More recently developed Induction Hobs may operate at a higher frequency, and allow the use of pans made from materials other than steel/iron, but they are generally more expensive, and not so widely available - check your pans with a magnet and ask the question before buying if you have any non-ferrous pans.
Ceramic pans can be used on Induction Hobs if they have a steel insert in the bottom of the pan.
There is a work-around for all 'unsuitable' pans which is to use a purpose-made steel disk between the hob and the pan, but this greatly reduces the efficiency (and rapid controllability!) of the hob, so is probably best reserved for speciality pans such as jam pans etc.
From personal experience, if you can find an induction hob that has Rotary controls (either physical knobs or circular touch controls) then you would probably find them easier and faster to operate than the type where you touch a fixed point to 'step-up or step-down' the power bit-by-bit - because if you see something on the point of boiling over, a fast response is essential

- Lifting the pan off the hob works, of course, provided that you have the presence of mind to do so!
Fortunately, Ceramic Induction Hobs are easy to clean up
