For the past few months, a few of us have had the pleasure of working with Ordinal to create an extremely performant sort component.
Chris, from Ordinal, sent an email earlier today announcing that they're done with a production ready version.
This is really great news, especially if you know the history of Ordinal and their reputation. Chris has been one of the most solid developers I've worked with either inside or outside Microsoft.
Anyways, check out http://www.ordinal.com/ssis.html if you're interested.