We're wanting to mount things to our walls... and we need to figure out how best to deal.

If there's a studfinder out there that can differentiate between metal and wood, that'd be even better.

(I suspect any originally-located walls are turn-of-the-(last-)century wood stud, but seemingly covered with sheetrock - probably when brought up to modern electrics, and I have no idea when the last major renos and wall-moves were and thus what they're likely to have been done with. So then the questions are: What's the best sheetrock anchor out there? Do you use different hardware on metal vs wood studs? What else do I need to be taking in to account that I haven't thought of?

Thanks!)