>>So, since windows is horrible when it comes to volume management, is there a way I can present two 1TB LUN's to that VM so it shows as a single drive leter in 2003?
Maybe windows volume mount points would do the trick? You could have then have your data like:
G:\home (1TB size)
G:\projects (1TB size)
...etc
Then you could share out G:\ from the root so the user sees it as one share. Or, instead of using volume mount points to create the hierarchy you could use DFS to visualize it in a myriad of ways.
Gotta ask though, why not use CIFS natively on the filer? It's a whole lot easier to work with...users can do file level restores from snaphots, resizing vols is trivial (smaller and bigger), etc.