I've never been to a slaughterhouse either. I don't think I need to go, thanks to YouTube.
This was shot at a French slaughterhouse and you don't need to speak the language to understand what's going on.
DANS LE COULOIR DE LA MORT (Death Row)
http://www.youtube.com/watch?v=aHTNq33cXBQ
It is not so much graphic as it is tragic, seeing the look in the cow's eyes as it tries to escape it's impending death. Even if you don't eat meat, dairy cows go to the same slaughterhouses, when they are no longer productive.
This next one is graphic. In French also. How did that steak really get to your plate? This unfortunate cow did not die a quick death. Many don't on the assembly line.
Abattoir de bovins - France 2007
http://www.youtube.com/watch?v=TcPYBuecCjI&feature=related
If this was done to a dog or cat in Canada... people would be outraged. For 'livestock' it is ok.
Are having meat, dairy and eggs, worth the suffering?