You might find EarlC's discussion on this topic of interest.
http://videomaker.com/community/forums/topic/current-posts-common-theme
As for which camera, might I suggest you look through the ones available through Amazon.com or B&H Photo? Read their descriptions/functions and follow with their reviews from users to see if any will fit your specific needs.
Read magazines like Videomaker. Look up their product reviews.
View the Videomaker Vidcasts here to learn some of the basic needs and skills.
http://www.videomaker.com/vidcast/153/
Don't forget about resources like wikipedia. they do a very good job of discribing the differences and with the interactive links, help to answer some of your followup questions as well.
http://www.wikipedia.org/
And don't forget the forum archives here. You are not the first one to ask such questions (and won't be the last) so search the forums for responses to others. They are a great resource and may also help you with focusing on what you really want to do in video.
Life is not a guided tour nor a destination.
It is a journey. Take the time to enjoy your family, friends and surroundings.
Build memories. Share experiences. Travel at sight speed not light speed. (C)