Not quite. Snow Leopard is the first OSX to have NTFS write support built in. It's just not enabled by default...and NTFS can only be written to by Mac OS X via MacFuse + NTFS-3G.
This might be a good start: https://forums.macrumors.com/posts/8781694/
Brand: Western Digital, LaCie and Seagate are the ones recommended for consumer use.
Plug and Play: Mostly, but often they have to be formatted first with HFS+ (the file system for Mac OS), as many HDDs might come formatted with FAT32 and NTFS, which are used for Windows.
Know that HFS+ is not able to be read or written to by Windows, except with the help of MacDrive, and NTFS can only be written to by Mac OS X via MacFuse + NTFS-3G.
Drag and drop: Yes, as they behave like any other place you store data to connected to your computer.
Thanks for the love, spinnerlys. I have moved onto this.
The quoted advice regarding brands is still my thoughts though.
Ah, I was looking for that but couldn't find it in your signature link like before. Nicely done and quite extensive.
What would be a nice addition is the file system question regarding HFS+ (Journaled or not), FAT32 and NTFS and the accompanying software.
I offer my help if needed, and wanted.