I am interested in a fairly low cost (couple hundred dollars or less)
GPS reciever that can log where it has been and download that data
into a computer.  I want it to take samples fairly often (10 seconds
or so, or every 20 feet or so).  I think some of the normal consumer
GPSes have this feature.  Just being able to manually define waypoints
is not enough, I want this to work automatically.

Hello:
  As you say, most of current GPS systems store track logs, so you can
download them later to your PC, here are my results:
  
Garmin International
http://www.garmin.com/

Garmin GPS 76 Handheld GPS Unit Product Page
http://www.garmin.com/products/gps76/index.html

Garmin GPS 76 Handheld GPS Unit
http://www.fogdog.com/product/index.jsp?productId=525103
• Automatic Track Log: Yes 
Saved tracks helps you retrace your path.
• Upload and Download Capability: Yes 
Provides you with additional points-of-interest and for use with PC
mapping software.

I think this model is in your budget, check out this price comparison:

Garmin GPS 76 Handheld GPS Unit (Price comparison)
http://www.epinions.com/otdr-Electronics-All-Garmin_GPS_MAP_76_Handheld_GPS_Unit_010_00249_00/_redir_att__~1

Also, a couple of links I have found about GPS track log:

GPS Track Log
http://www.explorium.org/exhibits/Tech_Corner/GPS%20Track%20Log.htm

Utility programs for manipulating GPS and map data
http://www.mailbag.com/users/peteb/utility.htm

I hope this answer is what you were looking for, and don't hesitate to
ask for any clarification.

Regards.

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Request for Answer Clarification by larry95-ga on 06 Aug 2002 08:35 PDT

Thanks, that is good information.  I do still have some questions. 
How often does it collect points?  The manual doesn't say.  And, how
many points can it collect before becoming full?  I want to be able to
run for long amounts of time without running out of memory (week or
so).  Also, are the points collected also have a time stamp?

Thanks!

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Clarification of Answer by joseleon-ga on 06 Aug 2002 09:36 PDT

Hello, larry95:

If you perform a product comparison between GPS 12 and GPS 76 here:
	
Product comparison
http://www.garmin.com/marine/compare.jsp

You will get the number of Tracklog points it can store is 2048.

In this page you will get a sample tracklog file

Sample track data
http://www.cycoactive.com/gps/gps_data.html

It stores the timestamp and location of each trackpoint, in this page
you can find also how stores the data:

"Notice that some points are one second apart and some points are 24
seconds apart. The GPS has a way of deciding how to take data
depending on how much you've moved. You can set it to take points at
any time interval, or any distance interval. We''ve found that the
default setting (which we don't fully understand) works great."

I hope this is what you were looking for.

Regards and thanks for using Google Answers!

Very good information, good response to clarification.