I'm sure you are going to get a lot of folks pushing whatever they use but when I started in 1974 we didn't have fancy tools to do joinery. We used dowels but we only had those pointed caps that you place in the dowel hole. It worked fine. One thing I find common is how people seem to think that dowels have to be in the center of the edges and that's not true. You can place them off center you just have to keep track of which side of the boards are the faces or good side. The right to left is what is important to keep lined up. Practice on junk scrapes and you'll get the hang of it. My preference would be the dowelmax out of the choices you provided. Mostly because it doesn't need separate power and can be used anywhere. And it's much more difficult to break. Any power tool is more vulnerable to breakage then a manual one.

@Victor Mena I'm currently working on a little box for my wife to put things in when she goes to bed. I had some wood left over and I asked her if there was anything she would like. She said "an open box about this big by this big and about 3 inches deep". So I started on it today. Gotta keep her happy 😁.

I've been using shop equipment since 1974 and there are as many tips as there is water in the ocean. Safety first. Second is you have to enjoy it otherwise it'll feel like a job instead of a hobby. If I had to give just one piece of advice that would be "if it feels dodgy or is making you feel uncomfortable then stop and rethink the process". That little voice in your head is usually wise advice.

@Victor Mena I also have the 7491 and it does have a short runway but for some odd reason it's never bothered me. If I'm crosscutting a board that is too big for the 7491 I use my homemade track saw on it. My biggest compliant about the table saw is setting angles other than 90 and 45. Other than that I love it.

@Victor Mena That's what I would do if I had more room. Since retiring I only have an enclosed carport 8 feet by 15 feet and have to keep everything on locking casters and flip carts for my jointer, belt/disc sander. And one has my compound miter saw and DeWalt 734 planer. It looks like a good plan to me.

Well, I carefully looked at the pictures and I see 2 things missing. A place for the cat to sit. :) And a mini fridge for the beverages. JK

Welcome. If you are on a limited budget you can pick up free furniture to use the wood. I got an old oak table that was 36 inch square for free and remade it into the top of a nice 1.5 inch thick top for a workbench. I also like getting free chest of drawers because there's a lot of wood from the drawers. If space is limited look into building flip carts. That way 2 tools take the space of one and use locking casters on them to save more space. The most important thing is to have fun and enjoy your new hobby!