Local vs Domain account

[Railbird]

I was wondering if it is possible to synchronize local accounts with domain accounts in Windows XP. Eg. I sign on with the same username either locally (when not attached to the network) or on the domain and get the same settings (desktop, start menu, etc) And changes in one replicate to the other account? The computer is a laptop that I use on and off a network at home. Here is my setup:

I'm using a Linux box for my PDC. I do NOT have roaming profiles enabled, as I do not have the server capacity to handle roaming profiles. (And I do not have the patience to maintain them, I don't want roaming profiles) I pretty much only want to use the PDC for authentication.

Because of this setup, when I log in on the domain with my windows xp laptop, I get a temporary profile that is deleted upon logoff since I do not have roaming profiles enabled. My local profile is untouched and still intact.

Any help would be appreciated!