If you don't like GPARTED then read on.
Quickest way is to create a Bartpe disk then just use control panel==>admin tools==storage management
delete the junk partitions, re-size, re-format and install your OS again and you are in business. The advantage of using a Bartpe disk is you can use the Windows Quick format -- believe me on a 750 GB / 1TB disk this makes a HUGE time difference.
If you can find a copy of Powerquest's partition image this will run on XP or the BartPE disk. (Powerquest has since long been taken over by someone else but use the Powerquest version of the program) --when installing you can enter ANY serial number -- it will just say Invalid serial number --do you want to continue --of course say yes.
BTW som Linux distro disks also give you an option to create partitions before installing the OS -- you can use one of these - just exit after creating the partitions - don't install the OS.
Cheers
jimbo