I make all my baby food. I don't find that it actually takes much time at all. If you make a veggie in the morning, then you can freeze 1/2 of it and use the fresh one for up to 3 days. I don't cook the fruits, there is no need to. When cooking them you distroy the enzymes which aid in digestion.
I'm not a big fan of the jarred stuff. It doesn't smell or taste like the real stuff and they have to heat the jars to high temps to close them and kill the bacteria which also alters the chemical composition of the baby food and decreases the nutritional value.
A good book that I have found helpful is: cooking for baby by Lisa Barnes
A good website is: http://www.annabelkarmel.com/