The best minidrill IMO is a jewellery drill or Dentist drill,goes for R900-00 (chinese),available anywhere.Google will help.
The motor is much stronger,and they hang from your desk/table (not in the way) and very long shaft.Lots of bits available from dentist suppliers,
and used ones from dentists, sometimes free sometimes R5-00.
Dremel is Austrian, and Austria is expensive.
Proxxon is better than Dremel ,but pricing is not.