Hello Hikeman,
Ultimate and Enterprise are basically the same as far as features, but here are some of the main differences:
- Enterprise is geared more for a corporation. Ultimate is geared more for the power user at home.
- Enterprise uses volume licensing (1 key for many installations), and Ultimate doesn't (1 key per installation).
- You cannot purchase Enterprise from a retail store (ex: Best Buy or Walmart), but you can with Ultimate.
- Games are turned off by default in Enterprise, but can be turned on. Games are turned on by default in Ultimate.
You can look in the left pane of each user's post to see what edition of Windows 7 they are using.
Hope this helps,
Shawn