Thanks for the replies everyone, exactly what I wanted. From what sherpaPeak is saying, sounds like an HR might be better for me as I'm not sure exactly what riding I will be doing. From checking the trail reviews on mtbr.com the riding seems to be quite varied around here in Vegas.
I did some reading of old threads last night and I gather from these that at this pricepoint Specialized as slightly lesser components on their bikes but better frames, compared to say Trek or other brands.