This should have no effect on your search engine except in the case of sites which return a result in $$$. This is not that big an issue as you can see by using the following demo. Real Estate Search Engine Demo

Should you need these characters in your search results page, we've collected a few html tags which can be used to generate the appropriate characters.

Sample Database

The following search form will return results based on the items listed in the test.txt Excel File.
Adding or deleting items to this spreadsheet file is all there is to maintaining a database for the Web Search Software.

Check your existing software as many programs will save existing database files to "text tab-delimited" format.
Then it's just a simple matter of deciding which columns to keep as the Web Search spreadsheet file.

There are also programs available which will convert many different formats of database files to that used by Web Search.
We haven't had a chance to evaluate the following product but we suggest you check the following site as it appears this would be an ideal solution for converting many database formats to
text tab-limited format for use with Web Search. http://www.datajunction.com

Check back often as we'll get an evaluation copy and let you know the results.
(Yes, they do have a demo version to download.)