Supergleep, welcome to the forum. Yes, those are 2 of the favorites.
AFA welding equipment goes, Jody on Tips and tricks will tell you to buy an older (they still make them new) Lincoln "Tombstone buzz box." This is a stick welder and used to weld thicker materials although I have welded 16 ga with one. They are simple and bullet proof. 220v and not too portable.
The most popular form of welding is MIG. Again, you can buy a lot of good stuff used, but there is more to look for, so bone up on this stuff before dropping coin.
Welding equipment is one of those things that really amounts to "you get what you pay for." IOW, don't buy cheap ****.
More on the Lincoln TS: Lots of old welders sold through places like Monkey Ward and made by Century and the like are just as good. Some you can get for 50 bucks. Ask to see it work... always.