DIY Tool Questions

[BigV]

Heya. I've resisted buying a cordless drill* for a long time. Santa let me down, so I'm gonna give one to myself. During that long time, no drill, things have changed a bit (rimshot). There are different tools out there now, different features, and I have done a LOT of reading, but, they're all shills. Now youse guys, you're shills too, but you're *my* shills. I kid, I kid. Seriously. I'd like some advice, the firster handed the betterer.

Here are some of the things I've noticed. Please comment.

Brand?

Lithium-ion batteries versus Nickel-cadmium.

LED lights for illuminating the work area.

18volt vs 12volt vs 9.8 volt vs 28 volt (I kid you not).

Variable speed versus single or multiple fixed speeds

Different chuck designs, one handed, keyless, etc.

variable clutch, including drill setting.

* Here's another area of ignorance -- what kind of tool at all?

Drill

Driver/drill

Impact driver (these look very cool)

Screwdriver (powered, cordless)

Combo Kit

******

Ok, that's a good start. We'll worry about price later, I can justify buying quality.... once.... or at least infrequently. I will shop local so, that's a constraint on price for me. I look forward to your input!