Seems I'm reinstalling all the time and I commonly forget my global ignore pattern for svn.  Here it is for future me:

*bin *obj RECYCLER Bin *.user *.suo *.dcu __history ModelSupport_* *.rsm thumbs.db

This pattern is useful for Visual Studio and Delphi development, though if you're checking in third-party Delphi components be sure you have the full source, otherwise you may need to pull the *.dcu part of the pattern.