Thanks,
Macster. I was actually talking about using iChat, which seems to be the program of choice. I'll investigate Mercury tomorrow. (So many things to investigate, just as well I don't have a life.

)
Re bookmarks, following the link as far as Preferences sadly doesn't bring up Explorer as the next option.
(I hope somebody else will learn something out of all of this.)
While on wireless, I haven't delved as far as Airport or Bluetooth or anything that arcane as yet, but in the meantime should any wireless modem/router handle all my wireless requirements in the home, or does there need to be something with a Mac flavour?
Err, thanks again, all, Keep the advice coming, it's most appreciated.