Hardware-assisted crypto?

I've been experimenting with the new column-level encryption features in SQL2005. While it's been very handy, I'm somewhat concerned about its performance impact -- particularly when there are many columns involved. Is there any known method for SQL2005 to use a hardware crypto accelerator (i.e. IBM 4758 or equivalent)?You can probably write an application that uses a hardware crypto card with SQL Server 2005, but there is no builtin support for any such card.

Thanks
Laurentiu