Sorry if this comes off a bit n00bish, but what about a source remover that only deletes sources that you have downloaded no apps from. I installed one of those 'install heaps of rad sources' apps, which is cool and as a result I have downloaded heaps of cool new apps. Now i want to get rid of most of those sources so my installer doesn't take 30 minutes to refresh, but I'm worried I won't know if there are any important updates for the great apps I have installed. If there was a way to automatically delete sources that aren't attached to any installed apps, and just leave the ones that you need to ensure your software stays up to date, it would be awesome. Any Ideas?