I just downloaded (yesterday) Windows 7 to my Mac-Mini,mid 2007 edition. (By way of Parallels.)
I have 2 partitions,HD 1 (37-39GB) ,which has OS-X 10.7.5, and a vacant partition,Recovery HD 2 (40 GB) .
Unfortunately,Windows 7 went into HD 1 and has filled up that partition,sharing space...