This weekend I made hummous for the first time, following a recipe from The Greens Cookbook and a helpful thread from Chowhound: Home made hummous just not as good as restaurants.
The takeaway from the Chowhound thread was: to get the desired consistency, do not be afraid to blend everything together for a long time (my handheld blender was fine) and add as much water from the chickpeas as it takes.
My hummous was definitely as good as any I've had. It was so exciting I kept tasting it to make sure it really was that good and by the next day it was gone. Next time I'll make a double batch and hopefully the novelty will have worn off...
...and for when the novelty does wear off, Casual Kitchen has a hummous blogroll of 16 different hummous recipes (many of which may upset the purists at Chowhound).