Managing diskspace: GrandPerspective VS JDiskReport

I've always got large files hiding around somewhere on my computer. I used to use JDiskReport to find out where they were, so I could find them and perhaps delete them. In any case, I would know where all that space went...
I've always found JDiskReport a bit crude. It does not ignore mounted filesystems. It is Java, so it is multi platform, perhaps that is the cause of this. Anyway, I've recently updated my Mac to Snow Leopard and I got this when I wanted to start JDiskReport:

I've tried every other program I regularly use and didn't need Rosetta. Why install it just for JDiskReport? I remembered reading about another program for the Mac that could do the same. So I went and downloaded GrandPerspective. It is much more friendly than JDiskReport. When you start it, you're asked what folder you want to analyse:
After selecting the folder you want and clicking Scan, it starts scanning:

After scanning, you get something like this:
Every block is a file. The larger blocks are virtual machines, in my case. If you open the 'Drawer' you can see how much space is used and how much free space you had when you started. With the three buttons in the middle of the window, you can open files, reveal them in Finder and delete them.
If I were using JDiskReport, I had to use Finder to locate the file I wanted to delete.


about 1 month later: