Don't have any experience with cedar tree removal but have been pleasantly surprised at how well some "scrubby" trees have come out for us.
The trees I have been removing have been in the 4" and smaller size.
Just to set the stage we have a NH TC40D with 17LA loader with a toothbar. The lift capacity is roughly 2000lbs and the bucket curl is around 3200lbs.
To remove the trees I worked with my wife, she was on the tractor and I was on the ground. She would pull up to the tree centered with the loader about 1 ft off the ground and the bucket level. Starting with the center of the chain I would wrap the chain around the tree, one wrap using the chain that was to the left of the tree and then 1 wrap with the chain that was on the right. Would do about 3 or 4 wraps this way. This would make the chain bite on itself and not slide off the tree on the next step.
Then took any remaining chain and would loop it over the teeth on the toothbar and then use the end hooks to hook to itself. My wife would then raise the bucket and put tension on the tree. If the chain was installed properly the bucket should not raise more then 8" to 12" before it starts pulling the tree. If the loader was not centered on the tree the loader will only be lifting on one side, not a good thing. Once the loader won't lift any more (assuming the tree is still in the ground, although some small ones will pop out just using this force) my wife would use the bucket curl to apply more lift. This can cause the rear wheels to come off the ground, not a good thing. If the tree did not want to come out we would then drive forward a foot or two and then backward the same amount or more, all the time still having the upward force on the tree. This motion would tend to break/loosen roots and then tree would usually come out. A couple trees were tough enough that we had to take the chain off the bucket and come at the tree from a different direction, reconnect the chain and then use the forward/reverse motion to break adjacent root systems.
Once we got the hang of it, the total time to drive to the tree, chain and remove it was only a couple minutes (unless we had to switch angle of attach to work tougher root systems). My wife was actually having fun and is now looking forward to removing the couple hundred more undergrowth trees we need to take care of. I can see that I will be competing for seat time this year. /w3tcompact/icons/wink.gif
There was also another thread here on TBN that discussed a rather simple device you can make to pull tree stumps. <A target="_blank" HREF=http://www.tractorbynet.com/cgi-bin/compact/showflat.pl?Cat=&Board=buildit&Number=149903&page=&view=&sb=&o=&vc=1>Pulling Stumps</A>