All Apple computers except the Mini Mac & Mac Pro have a built in Webcam. Logitech builds webcams that are Mac compatible. Just make sure the one you buy is.
The Logitech LS1 mouse can be used with a Mac. It will work straight out of the box - just plug it in. Logitech do provide a software control centre - the latest version (3.1) includes Snow Leopard support (see links below).
Logitech is a good brand of webcam that can be used with a Mac computer. Logitech makes high quality products for both Mac and Windows and it should be easy to find the brand on all the popular sites such as Amazon.
iStopMotion 2 should work with any camera compatible with QuickTime which would include the LogiTech QuickCam. (See links below)
The Logitech Z5300 speaker system can be used with a Mac but check that your Mac will be able to connect - the Toslink may require an adaptor. (See links below)
The Logitech G430 can be used with a Mac. However, you will not have the full experience of surround sound. Currently there is no software to install for Mac to have the full surround sound effect.
Yes, you can use the Logitech X-540 5.1 on a Mac, you may however need an external sound card to connect the equipment correctly with your Mac model.
The Logitech diNovo Edge Mac Edition is considered to be the best keyboard for MAC
Most USB portable speakers are compatible with the Mac OS, but you should make sure that the speakers have Mac Drivers, otherwise they will not work properly.
Office 2010 is compatible with Windows 8 running on a Mac. It is not compatible with any Mac OS.
The webcam on a Mac is controlled by the software using it. Launch Photobooth, Facetime, iChat, iMovie or any other software that requires the camera and it will be activated.
Webcams manufactured by Dell are easily seen as being the most compatible of all webcams. Whether you own a PC or a Mac, Dell will have a great webcam for you. Dell.com will have information which will find the perfect webcam for your computer or laptop.