Mac's come with iChat software which uses the AOL AIM network. Both users would need to set up AIM accounts and the Vista user would need to run the AIM software so they could chat via their web cams. An alternative would be Skype. (See links below)
Connect the camera to your Mac and run the iMovie program. iMovie should recognise your camera and you can then import your video.
Windows Vista and Mac OS are types of computer operating systems.
appears to be a OS that's a mix between mac's OS X and windows vista.
On an Intel mac you can run parallels which is capable of running xp and vista.
Different camera companies use different software inside the camera. Experience says that connecting a camera to a Macintosh computer will start a program called iPhoto that will import pictures from the camera into the Mac without any other software
Pc-hand seems to be a good program that can do this.
Windows Vista and Mac OS X are examples of computer operating systems.
Either Windows XP or Vista can be installed on a Mac that uses an Intel processor - which is all of the recent ones.
Yes Vista Wallpapers can be used on a Mac Computer. But on a Mac computer they are called backgrounds instead of wallpapers. You can download some of these wallpapers at vista123.net
Mabinogi will work with windows XP and up (that includes vista, and 7 when it comes out). As for the mac, the only known way is to use bootcamp to run windows on your mac.
virtualbox (free) vmware (paid)
No unless the Mac is running Windows XP or Vista as there is no Mac OS X version.