Crystal vs SSRS


I am currently creating financial reports using Crystal Reports and BAQs. Some of them are taking quite awhile to run, and when the report viewer appears I get an error message saying SystemOutOfMemoryException.

We are running Progress but in the process of setting up the replication server. Will I see any speed benefits and will the reports actually run if I go the SSRS route? Also, what do you use to develop SSRS reports?

Thanks in advance!