Disk Space Usage on my Mac Mini

Where has all my disk space gone?
Info on my Mac Mini drive is as follow;
Capacity: 74.21 GB
Available: 9.68 GB
Used: 64.53 GB
Doing the info on all folders visible in Finder;
Applications: 5.29 GB
Developer: 160kB
Library: 10.75 GB
System: 2.53 GB
Users: 13.8 GB
I don't even have to try and add these up as they are nowhere near the total of 64 GB used, so what directories/files are not visible? Or what is using more than 30 GB of space that I cannot see?
I trying to free space up and or move things of this drive because is is dog slow right now and it.
Any insight would be appreiciated.
Warren

OK, So I dl'd that and ran it and it only showed an additional swap file directory called "Private" that had about 3 gigs, still about 27 gig's missing.....
In this program the bottom bar shows 74.2 capacity, 61.5 used, 12.6 available
Big directories (anything over 1gig)
13.7 users
10.7 Lib
5.28 Apps
2.53 System
2.93 Private
About 35 gigs
then a bunch under 1 gig that total less than 1 gig,
so say around 25.5 unaccounted for ?????????????
nice program but still wondering where my hard drive space has gone.....
Warren

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Hi
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@profile_name = 'Profile name',
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@subject = @sub,
@body = @mailbody,
--@file_attachments = @logfile,
@body_format = 'HTML'
END
drop table #driveinfo
set nocount off
END
Thanks Saurabh Sinha
http://saurabhsinhainblogs.blogspot.in/
Please click the Mark as answer button and vote as helpful
if this reply solves your problem

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OK, So I dl'd that and ran it and it only showed an additional swap file directory called "Private" that had about 3 gigs, still about 27 gig's missing.....
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Warren

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