Q for the experts! How to make multiple remote calls without loading the server.....

Hi all,

Just looking for pointers as to where to start with this. I have a system in C# windows that will need to update in real time (or every 10 seconds or so) when another user does something. I've lots of data but don't want to re-load everything every few seconds as it'll slow the system to a crawl. What's the best way to flag a change so I can load up just the data I need when it changes? I'm working with SQL Server disconnected recordsets.

Thanks all! Tim