I use my little Crapsman band saw up through 1/4 inch and have even done some half inch. It cuts fairly slowly and you can follow a line pretty easily - which I, at least, cannot do with my jig saw even with a good metal blade. I don't even change blades with the band saw but I do a real good clean up of chips, especially the wheel coverings. As far as holes - a good bimetal hole saw, not the cheap ones, works nicely, though you should slow the speed.
A cut off wheel will bind and break for me (aluminum will heat and expand, then grab the wheel) - so don't I wont use except on the heavier stuff.