Sometimes even if the searches seems finished, additional results will keep adding themselves.
Besides, it may not be a very good idea to wait for too long: if you want to have like 500 results and have to wait like 5 minutes for those, then maybe the results that have already appeared will no longer be valid after the search finishes, due to people logging in and out during those 5 minutes.

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iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
Our best years have passed us by
The Golden Age Of Leather"
-Blue Öyster Cult-