Any way to schedule Spotlight indexing?

Since upgrading to Tiger, I notice my computer's hard drive activity is much more frequent with Spotlight updating the index while I surf the web, work with iCal, whatever. Nothing out of the ordinary for Spotlight, as far as I can tell, but I'd like to reduce the hard drive "chatter" without turning Spotlight off completely (via Spotless).
Any tips for turning "down" the frequency of indexing files? I would love if we could manually update indexes for searching, like in Panther.
Thanks for any help you can offer!

Not a contradiction because the data written to the index is usually quite small compared to the size of the file being written to disk at the same time. For example, with images - when you save the file to disk, it may be a 5MB file. When written to disk, it may trigger an associated write of 10KB of metadata.
For documents with a lot of text, there would be a scan of the file as Spotlight pulls out the unique terms in the file to add to the content index, but even this will be quite small compared to the actual file. So, the extra overhead specifically due to Spotlight normally shouldn't be noticed. Essentially it adds a relatively insignificant secondary write to the larger original disk write that you initiated when you saved or copied the file.
If you are noticing a lot of extra activity with iCal or when surfing maybe there is something else going on. With iCal and Safari open, mds and mdimport are sitting quietly at 0% CPU and not adding much of anything to disk writes except when first opened for me.
As for using Spotless, et al, people have found that they are unable to get Spotlight to find anything even after they try to turn off the effects of Spotless. This may be due to them trying a cocktail of methods to alter Spotlight behavior and then not knowing how to reverse all the steps.
Just in the the 2.5 years that I've been on Tiger and been dealing with Spotlight, it seems to work the best when you just let it work and not try so hard to fix it.
For more info on how Spotlight works, take a look at the Spotlight Technical Brief

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Schedule Spotlight Indexing

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HT201250 Is there any way to schedule backups on Time Machine? I hate it that backup happens every dang hour. I would like to have it back up at night.

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Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Is there any way to schedule an Internet connection reset?

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How would that help though? I need the Internet connection to be reset, so that a new session starts after 02:00 AM, which will then be counted among the happy hours and won’t be chargeable. Restricted my Mac from accessing the wireless network is not the solution here.
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2 - Analog Headphone Out Left
3 - Audio Backpanel Mute -- short to ground to mute the backpanel (when headphones are plugged in)
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[img"]http://www.cs.rpi.edu/%7Ehollec/images/sonata+audigy.jpg">

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Message was edited by: WZZZ

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The test was conducted in the following procedure .
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c1 varchar2(10),
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Any way to schedule Spotlight indexing?

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