Saw this (but cant remember the source, sorry).
It is a list of companies that are Microsoft Partners that will convert Crystal reports to SQL Server Reporting Services.
I should also point out that Touchstone are also able to offer this service. It is also worth mentioning that because of the different approaches to report design and formula structures there is no automatic magic tool that will give you instant results. In our experience automated tools are fine for getting a lot of the leg work out of the way, but, unless it is a very simple report there will still need to be a human involved to finalise the layouts and formula.