I'm gonna move to a new place soon and, for the first time, I'll have a room dedicated to my (quite large) collections (figures and manga) and I'm really hesitant on how to make it look good. I've researched the subject on Google Images but since I don't really know what I want, it's not that easy to find something I like.

Should I settle for glass cabinets or shelves with glass doors?
If I choose glass cabinets, should I buy some with plain (what color?) or mirror backgrounds? (I don't really like transparent backgrounds.)
If I choose shelves with glass doors, what color should I buy? I think black is classier but I have quite a lot of figures with dark colors which would probably pop out more on white shelves.

Feel free to post pic of kickass collection rooms. I need ideas.