InfoPath Dev

I am using InfoPath 2003 and I have a form that is published to SharePoint 2007. 

I need a way to read information about a single item from a SharePoint Document Library.  Unfortunately, when I set up a standard data connection to the library, it appears to pull all of the information on the first page of the default view, which causes a performance hit.  What I need is to do select just the relevant information from the library.  I think the way to do that is with a web service (either Lists.asmx or dspsts.asmx).  Unfortunately, I can't seem to find any information about how to do this. 

Can someone point me in the right direction?

 Thank you for any and all help.

Hello, and welcome!

This post suggests that SharePoint may not allow this type of query with its web services. I don't know definitively, but I also found this which suggests you may be able to get around this with a proxy web service that you can build yourself.

I like this link for its list of available SharePoint web services -- I haven't found too much documentation out there.

Oh, and one more thought -- I realize this may be a little unorthodox, but I've gotten SharePoint data from its databases directly before. Desperate times sometimes call for desperate measures!