Trash won't delete

Before anyone says it I'm aware that there are like a million of these topics on the forum. I've used the search but haven't found one that has worked yet.

I'm running a macbook white (early 2008, 4.1 model) on OS X Lion 10.7.3 and my trash will not empty.

I plan to put an SSD into my macbook in the summer so I was trying to decide on size. Originally I wanted a 120GB drive as it's only 40GB smaller then my current HDD but budget looks like a 64 might be better. Unfortunately as it stands my macbook has 100GB full which means cloning to a 64GB SSD wouldn't work. Because of this I've been going through my drive to see what can be cleaned out; in order to see if I can get it down to 64GB.

This story is getting long though, to the main problem. I have a bunch of stuff in my trash now that won't go anywhere. When I hit empty the emptying dialogue comes up but all it does is load and read "preparing to delete files" without even calculating the amount. It does the same thing when I secure empty (hold command and right click on trash) and force empty (hold option while clicking empty). Restarting the computer resulting in a number of files showing up (2000 and some) but none being deleted. The process bar just doesn't move.

The only way I can even get the dialogue box to disappear is by relaunching finder. I've waited 5+ minutes without the progress bar ever moving in both instances. It's not long but it's more then it should take.

I haven't been able to find a topic that offers an answer that isn't above so I'm interested in trying just about anything.

 

Update

Looks like I got rid of everything except one folder which was near the top and must have been holding everything back. The folder is called:

and must have been grabbed when I put firefox into appCleaner. I got rid of every other folder which is good but I want to know how to get rid of this one too. It's not locked and I have permission to read and write on it. Ideas?