i'm really struggling with our first purchase and cannot decide between which 21.5 models - 2.5 or 2.7. We are basically only using for browsing, email, word processing, lite picture processing. It doesn't seem to me the small bump in processor and video would be that much. The thing I'm nervous about is the smaller hard drive and concerns about how easy it is to upgrade in the future. Maybe the additional 300 would be best to spend up from for the 2.7 package which includes the bigger hard drive. Thanks for the input.