I think you already know about my situation Don, but will weigh in anyway.

I build my own for both office and home office. I use gigabyte boards and nvidea graphics controllers. I do this because I run Linux and know what will work best with it. I also prefer AMD processors (something we can debate someday).

I do have a laptop. I have a recent Intel based Asus model (for compatibility reasons - and its a good name with good quality parts).

Most of my peers at work run Macs.

Can't convert the family, Daughter runs a MAC (I suspect because its cool). Son and wife are PC people and both are using Windows XP.

All the reports I have heard (from real users) about Windows 7 sound great. I truly hope its that good. Otherwise the family is staying on XP, and its getting pretty dated now.

Edit note: Didn't account for the two kids who are married and not living at home anymore. My other daughter runs Linux (her husband works for Google) and other son is Windows XP.

Gram