EASEUS Partition Master Professional Edition is an ALL-IN-ONE partition solution and disk management utility. It allows you to extend partition, especially for system drive, settle low disk space problem, manage disk space easily under Windows 2000/XP/Vista/Windows 7 (both 32 bit and 64 bit).
You can read details about EASEUS Partition Master Professional Edition here.
Cost of this software is $39.95 But only for 24 hours, ie on 5th Feb 2010, it is available for FREE. You have around 20 hours left to download and install this freebie.