Here is a list of my favourite 100% dairy-free dairy alternatives:

Soy Silk** - soy milk (chocolate, vanilla, plain)
Soy Delicious
** - "ice cream" & frozen desserts
Tofutti
** - dairy-free cheeses, frozen desserts, yogurts and more
Earth Balance Buttery Spread
** - a dairy-free butter alternative

I have found these foods delicious, and after much taste testing, I also found them to be the best tasting alternatives on the market.  Please note that I have not tried all the products available from these companies, so I do not know if their other products are dairy-free.  You should not expect your dairy alternative to taste exactly like dairy, it may take a bit of adjustment.
HOME

** This brand's other products may contain dairy products, please read the label to be sure.