Users would like to able to quickly search shared folders etc. on the server.
What are the PRO's and CON's of these two technologies?
We have looked at Search Server Express in our org, and have found that it works well for a free product, but it has pros and cons.
Thats pretty much where we left it, e are continuing to look at express as an option for the future. There are some other options, but they cost. The Google Appliance is kind of spendy, but a good option. There is also an option from Copernic that seems good also, but it costs.
Your likely to add WSS or sharepoint (if it's not already in the works) the big plus for Search server is that it supports sharepoint. Windows search would also require you to add any 3rd aprty filters (pdf etc) to each desktop but search server allows you to have a central filter repository.