You should be able to connect most monitors to a Mac with a suitable adapter/cable (See links below) but it will depend on the particular connection options for the Mac and monitor. Talking to a local computer retailer may help to clarify your options.
Yes, multiple monitors can be connected to a Mac Mini. Get a good USB to DVI that is compatible with Mac. Download the latest Mac drivers. Install the drivers with the help of the instructions. Plug the USB into your computer. Then, connect external monitors.
The best place to buy a computer is Best Buy. Also, shop at the store the computer is made by. Like if it is made by mac, go to the mac store online or at your local mac store.
computer monitors
There are many places where 20 inch ASUS computer monitors can be purchased. One can purchase 20 inch ASUS computer monitors at popular retail stores such as Best Buy.
The Logitech diNovo Edge Mac Edition is considered to be the best keyboard for MAC
Yes.
The best mac computer depends on your needs and wants. If you are looking for a laptop you are going to want a MacBook Pro. If you are looking for a desktop you are looking for a Mac.
Samsung monitors are great for graphic design owing to their great color reproduction.
A website called pcmag, gives you the top 10 best large computer monitors. It provides complete information about each of the 10 monitors and the advantages / disadvantages of it.
Mac
The best computer is the mac but the best program (I think) Photoshop, is for PC