Sysprep Images For Private Distribution?

I'm finding that I've been installing/reinstalling windows a couple of times a month recently. Either I'm giving a "fresh start" to on of my household's computers or building a new computer for a friend or family member.This not only takes a lot of time but also a lot of bandwidth. Updating windows over and over again is a pain and games are commonly 10-20GB a piece nowadays.

Here's my plan, can someone tell me if it makes sense or offer better methods?Using VMware, create 3 images.-One image with only windows updates and essential programs (AV, VLC, browsers, etc).A copy image of that one with all non-game programs commonly used (office, gimp, wtvr).And a third copy with everything including games.Make copies and sysprep the copies.