How to find the file address location for a file found in Spotlight
From Spotlight:

Show All in Finder -> ctrl+click the file -> Show in Enclosing Folder or select Get Info. Now you are at the file's location or have the files address (from Get Info) without opening the file.

UPDATE: OS X Yosemite changed Spotlight quite a bit. Now the the file location is displayed in the lower right corner of Spotlight and cmd+enter will open a finder tab with the searched file at the file's address.