Creating Partition on Mac OS X 10.6.8, crashed during, stuck.

[CitizenJag]

I'll try to give as much info up front as I can and then maybe someone here can lend me a hand.

I'm looking to install a partition and then install windows on it for various tasks. I originally set aside 300gb of my 2tb internal drive for this partition.

I'm running MAC OS X 10.6.8

I was half way through the load bar on the partition when the screen froze and after and hour it was still frozen and i went ahead and restarted the machine. I went to restart the partition by am met with the following error when i get to the actual partition creation.

The disk cannot be partitioned because some files cannot be moved.
back up the disk and use Disk Utility to format it as a single Mac OS Extended (journaled) volume. Restore your information to the disk and try using boot camp assistant again.

So I opened disk utility, and have the five options, first aid, erase, partition, raid, and restore. I want to avoid a system restore at all costs if possible...

when i click on partition it shows me the rectangular bar on the right with the word Macintosh HD in blue, filling up about 80% of the rectangle. below it is a white section with no text in it.

When I started the first partition i had about 600gbs free, and now it tells me I have 309.36 free. it seems like i created a sort of dead space partition on my partition...

Does anyone have any steps to help me solve this and get my partition up and running???

More detials...

I have an Imac, 3.4 GHz Intel Core i7
16gb 1333 MHz DDR3 memory