Symantic PartitionMagic v8.0 (1 User)
Worked great on Sony VAIO
My Sony VAIO has a 200 GB Hard Drive which Sony partioned into C & D drives.  The C drive was partitioned with about 13 GB and the rest was partitioned to the D drive.  The C drive was way too small and continiously ran out of space.  Even reinstalling programs to the D drive didn't help for very long.  I sucessfully resized my C and D partitions with PM 8.0 in about 45 minutes out of the box.  Kind of expensive for a 1 time use program, but I didn't have too much of a choice thanks to Sony.