MacDonald Ranch is a truly lovely community in Henderson in the southern foothills of the Las Vegas Valley. It's actually a part of the Green Valley Ranch master plan and is EXTREMELY popular - there are lots of parks, biking and hiking trails, sports fields, The District at Green Valley Ranch for shopping and restaurants, highly rated schools, etc.
Here are a couple of websites for that area which you might find helpful:
They have more information about the schools and neighborhoods. My husband is from Clark, NJ, just up the road from you, and while he loves going home to visit, he will be the first to tell you that he loves living in Vegas much more! :)
Hope this helps. Feel free to call on us directly if you have specific questions about the area.