This is a feature request.
I think the user login (and related code) should be moved from the Admin section (ws-admin.css, etc.) in to the Theme section. This would allow the general theme to control the look and feel of the registration, lost password, and other common user functions. I am working in WP 1.5 and these user functions are snarled up in the Admin section. I want the user to see the login as part of the main site design, not the Admin design.
My two cents... I am new at this, so feedback is appreciated.