That said, I'd still point at Ryobi as a good place to start, or to move up from an Ikea toy or whatever. They're fine for occasional, light-duty kind of use, and they have a wide range of cheap 'n cheerful stuff that'll take the 18v One+ batteries - the drill might be dead (until I get around to resurrecting it), but I'm still getting good service out of its batteries in the $100 weed eater I use a couple times a year.
(Also, that $50 Ryobi starter drill, plus a cheap rotary scrubber head off Amazon, makes a great tool for getting rid of stubborn mildew. That's the other thing I like about them: they're cheap enough that you can try dumb shit and not be too upset if it blows up on you, or not really mind running it to death if it doesn't.)