I heat both my house and my shop with wood and we cut several cords a year. I personally prefer Husqvarnas, but Stihls are OK too. Be sure to heed the safety advice given by previous posters - proper chaps, ear and eye protection and a hardhat can make all the difference.
However, you can very easily get killed felling a tree even if you do know what you're doing. Not knowing what you are doing raises the odds against you substantially. The guys who cut timber for a living here all use the winch on a 'dozer to snug up on a large tree before they even begin to notch it because large trees can be extremely unpredictable once they start moving..
If this is a one time clearing job, you might want to consider having a pro do it. Often times, you can find someone who will do the work and pay you for the timber. Then you just need a small lightweight saw for bucking the branches into firewood, which is waaay safer than dropping trees.....
I walked the property which mom had bush hogged. It isn't much, just two or three acres. But this has been in my family for 200+ years and I don't intend to let get ahead of me. There are plenty of saplings that will be easy to fell for practice. Heck, I could spend a summer just clearing saplings. What I may do is clear out the small trees (small tree being 30 feet tall or less) and then get a professional outfit to cut the large, tall trees. But I won't cut any trees of any size for a while, just to be safe. Please don't think I am am going to go kamikaze cutting on the largest tree first. Is running a chainsaw dangerous? *BLEEP* yes!!! Will I be careful? Also yes. And I am going to, as much as possible, reduce the danger by wearing the proper safety equipment. A helmet (probably with eye and earpro) , chaps and steel toed boots. Am I missing anything? I feel like I will spend more money on safety equipment than on my first saw.
I think I may also need a gas brush cutter to cut back the blackberries that are too thick for a machete.
Btw, that husky 435 looks nice. I see that several reviewers had trouble getting it running or keeping it running. Is that something to do with saw tune?
Maybe I am doing wrong by looking for a saw but I love being outdoors. And I can't think of anywhere I would rather be than working on my family's land.