Best free interior map resource?

[Steel General]

You have to be careful what you use as a username on GM's Apprentice, don't use any spaces, underscores or other non-alpha-numeric characters. I had a similar problem when I initially signed up.

[13garth13]

Thanks for the heads-up about the username issue; that did the trick (of course, my original username did only had alphanumeric characters, but I just took the numbers out and went with straight letters, and for some goofy reason that worked).

Cheers,
Colin