No.
Make sure they show, in writing, that they are Mac compatible.
Apple use's the Plug and Play rules where the manufacturer is supposed to have their devices able to just plug it in an be able to work. Some keyboards, mice. etc, don't always go by that and require drivers to be able to use all the features. If they require drivers and don't make Apple drivers then they may not work at all or only have minor features enabled.
Any wireless keyboard will work with a Mac. However the very best is the Apple wireless keyboard and Apple Magic Mouse. They are bluetooth and just work with no additional hardware or software.
All Macs come with keyboards (except maybe the Mac Mini). It is the thing with lots of squares with letters written on them that you use to write into the computer.
The Logitech diNovo Edge Mac Edition is considered to be the best keyboard for MAC
There is no Menu key on Apple keyboards.
I would recommends the Wireless Mighty Mouse by Mac.
Yes, most computer gaming software today is made with a MAC version and a Windows version. Some of them are compatiable with both.
without a hard drive,you'd have nothing to install it to.
On older Mac keyboards the Apple key is the Command key.
yes, you can... it has no authentication .. all router settings can be left default - just add a mac filter for your wireless security and hide the SSID of the wireless network
The Mac mini is a wireless computer as it supports standard WiFi 802.11n and is IEEE 802.11a/b/g compatible.
A Mac's airport card connects the Mac to a wireless network. If the Mac is turned off it will not be connected to the network.
One can purchase a Mac keyboard wherever Mac computers and accessories are sold. The best place to purchase a Mac keyboard is directly from an Apple retail store, or the Apple Online Store.