The most basic set up for Extract I would say is.
2 x 5gallon plastic pails ( you could get away with 1)
1 x lid for above (but they normally come with a lid each.
1 x bung
1 x air lock
2 x metres of food standard vinyl tube 10mm
1 x thermometer
Then you'd need your ingredients.
Bottles (swing top) or caps and capper
A cleaning/sanitising agent (bleach can do)
And the most important thing, knowledge and patience.
Next step,
Hydrometer. Large boiling vessel and a method of chilling. Good cleaner/sanitiser (Oxy Clean, Idophor)
From there the sky is the limit.
I think I have a good compromise.
http://www.orfyblog.com/brew/index.htm