Tutorial on creating control/components?

Hi

I am not new to delphi programming, but I tend to only use the components th
at are included with delphi.

For my new project though, I need an interface where I have an 'active-area'
, and I want to create a component that is a combination of 2-3 labels, and 
a panel/paintbox/image.

I need to be able to create unknown amounts of these at runtime, so I cannot
 just drop a component on a form.

I have never designed a component or a control. Should I create a class that
's a descendant of TPanel/TImage/TPaintBox, or should I go much more basic w
ith TGraphicControl?

I have no idea where to start so if someone can help me, I'd greatly appreci
ate it.  Or just show me to a tutorial on designing graphical classes.

Thank you so much!

-Reenen