Welcome,
We are also new and the only reason I am surfing now instead of Geo-Caching is that the 2 year-old that I babysit is sleeping. When she wakes up we go "treasure hunting" every day. Yes, we are addicted.
We started with the old yellow e-trex, still use as a back-up. My husband decided that "I" needed a new one so he bought me the Garmin CSx I still use the old one as well as the new. I just love them both and use whatever one he doesn't take to work to "lunch-cache".This hobby is so addicting but the fun of the hunt is fantastic. Good Luck!!
I love my CSx. Was a little fustrated when I had trouble figuring out some of the features but after a couple of hours playing with it I could not be happier.