Just a note. Forum rules specifically mention that one should not use text speak.
(Not to side track the thread, but it's generally frowned upon and will often cause people to not offer help because they find it so annoying.)
While this seems unreasonable to some people, I have noted that 99 percent of the folks who use it don't have English as their first language (though, sad to say for American education, they usually write better than native speakers) and sometimes don't understand the nuance of how it's considered somewhat rude on forums like this.
I realize you've already apologized and stopped doing it, but I just thought it worthwhile to add the explanation for others who come across this thread in passing.
Now, back to the regularly scheduled program.
Have you looked at the samba wiki? It has a section on using samba with AD. (Last time I looked, though, it was aimed in the opposite direction, letting Windows users access a Linux server.)
I wonder if sudo might work for this? I never ran into this exact situation, in our case, it's the other way around, having Windows users access shared Linux drives.
(I haven't gone through the samba howtos either, I wonder if there might be something in there, but you've probably already looked.)