More USB on a Mac Mini

[koolpc]

Just bought a Mac Mini which only has 4 USB ports on the back.

How do you guys add more USB to the Mac? Hub? From Keyboard?

I need a spare one or 2 for my external HD and it is a pain going behind the unit to plug it in.

 

[koolpc]

Can you get one with card reader on it too? Would it be powerful enough to read a USB external HD?