Software of Choice - For defraging a Hard Drive --- All good answers will get points

Currently we  do not have nothing in place to defrag our users desktops and laptops.  We pretty much just wait for the hard drive to fail then replace it.   We do not store nothing on the local drive -- everything is stored on network drives ( Roaming Profiles)  When a HDD fails we either re-image it or put another one in.

We currently have around 4000 client computers world wide.  What would you suggest to use in an enterprise enviroment to defrag the client computers and run check disk.

All good answers will get points --( so yes I am splitting them)
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stratasoftAuthor Commented:
Failed to mention that all of our clients are running Windows 2000  ( a few XP clients but not many )  all Servers are Windows 2000.  
We have been very happy with the newest version of Executive Software Undelete.
It has many options on how and when to defrag as well as the ability to defrag mft and boot files.

The network version can install to the clients from the servers.

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If price is no problem then you can use PerfectDisk.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
O&O Defrag
Executive Software Disk Keeper

Those are the two I've tried.  The built in defrag is a striped down version of Disk Keeper, O&O was nice... but nothing I tried handled clusters above 4K (4K was ok, but 8K was not, though that was about 3 years ago).  Both products, I believe, allow you to schedule defrags and run them remotely on other systems.
A free option is DIRMS and Buzzsaw (
stratasoftAuthor Commented:
Anyone one else have nay input before I close the question out?
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Windows 2000

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