In my experience, a Saber( jig) saw with a good Rip guage/fence thing, that has a pin/hole to use for cutting cirlces, and a 3/8" corded drill are incredibly nice. When I was younger, thats what I was useing.
And while a jigsaw is slower thand a circ saw, it will rip/crosscut/mitre/scroll, while a circ saw can only rip/crosscut and miter. Also( if the kid is younger) a jigsaw is safer, Never heard of anyone ending up with the name "3 fingered xXXX" from one of them.
And the corded drill will never stop working half way though a project. The only downside to a corded, is theres an extention cord following you around.
Also, depending on where he might be useing the tools.( If you can't get a good heavy duty cord that has a multi plug on it) cut the single end off of an extention cord, and put a 2-4 plugin outlet on it, in a box. We have a few of them, and it's nice to not have to swap plugs constantly when your switchign between tools, and you can only use 1 tool at a time, so you shoulden be able to over draw it.
I can't recomend brands, because I have the Absolute cheapest power tools you can imagine( how could I pass up $8 per tool?

), but get decent ones, I'm going to as these die.