most people would say an auto siphon is the way to go. I'm too cheap, and never bought one. I have two ways- one is a carboy cap. It has two, well, nipple things. You put your racking cane in one and blow in the other. The positive pressure causes it to siphon out. If I'm using a bucket, I do it the old fashioned way- fill the entire sanitized tube with water. Pinch it off, put it on the racking cane, put the racking cane in the bucket, and put the end in an empty pitcher. I open it, and the water goes into the pitcher. When it flows to beer, I pinch off the end, and put it in the vessel I'm racking to. It sounds like a huge PITA, and it would be for most people. But this is the way I learned, so I don't find it difficult at all. It did take LOTS of practice, though.
Lorena