RE: user accounts across Homegroup
Very good question. As far as I know, there isn't really a good way of making a profile "mobile" or "roaming" without a full Network OS like Active Directory.
Also, assuming you DONT want to just copy things like screen color or background between machines and DO want to sync files, favorites, etc.. You are going to need to have one place to keep these settings. Designate one machine to be the "Server" and create a folder for each account and share it. Then...
1. Under COMPUTER MANAGEMENT > LOCAL USERS AND GROUPS: Right-click the account you want to setup and select PROPERTIES. Then under the PROFILE tab, put the path of the network share you created for that user in the "Profile path:" field.
You could "redirect" the Home folder to the network share also in the area below.
2. Login with the user and goto the users profile folder. (*:\users\profile) Right click the My Documents folder, select PROPERTIES and under the LOCATION tab, put the same network share in that field. You can do this for the FAVORITES, PICTURES, and DESKTOP folder. (Do this only once on the machine that has the users primary account and data, no need to do it on all machines)
Here are some issues you might need to consider:
* the machine that has the share needs to be available at all times on the network. you cant shut it down for example.
* you will have to do this on each machine for each user that you setup. Since you dont have NOS setup, you will have to keep all the users accounts and password the same on all machines.
Hope that helps and good luck.
BTW, have you thought about Windows Home Server?