As a former Jr Blue Jay and NCAA Div 1 baseball player, my baseball experience helped me with Golf and put me far ahead of my peers who started playing golf when I did 7 years ago.
The one thing that I was able to grasp in Golf right away was the concept of using my core (legs, mid section, etc) to generate power and speed with the swing where my peers used their hands and arms to generate power/speed and very little core. The baseball swing doesn't require to move the majority of your weight forward but it does require using your legs and core to approach a pitch from the inside while extending your arms through impact (similar...not the same but similar to golf).
I was a pitcher/center fielder and surprisingly, I realized that my pitching experience might be the biggest contributor to learning how to get my weight to the left in the golf swing. Pushing off of the mound during a pitch really translated to pushing in a similar fashion with the inside of my right foot while I'm at the top of backswing just before the downswing starts. Similar to pitching, the energy in your arms etc stays back until it's powered forward (in the case of the golf swing, the energy is exploded through impact).
The way you hold a baseball bat and the way a baseball bat is swing with your wrist is the biggest difference, for me a least, between the baseball swing and golf swing. To start, I had a "baseball grip" when I first started playing golf (I now overlap). Not saying that a baseball grip is bad but it leads me to my second point. In the baseball swing, the way your right wrist acts through impact isn't the same as the "flying wedge" in golf. In baseball, even though you are approaching the pitch from the inside, you must swiftly release your right wrist to 1. catch up to a ball that's travelling 90+ mph, and 2, get the barrel of the bat onto that same 90+ mph fastball that's on the inside of the plate. When I started playing golf, I would have my right wrist react in the same way which caused me to loose the flying wedge and the result was a "cut across the ball" action at impact (it was really predominate with the driver). Understanding the pressure that needs to be maintain with the right wrist (think PBA ball striker) was the #1 thing I had to learn...it wasn't weight transfer, it wasn't using my core muscles...none of that...it was all my right wrist. That's my expereince. Maybe other baseball players have a different expereince but for the sake of contributing to this post, I figured I would share my experience on the subject.