Recommended Macbook Pro eSATA Express card?

[Tbassist4]

Hi, I was just wondering what would be a good option for a reliable eSATA express card for the Macbook Pro. Running a firewire 800 hard drive will not work well with a 003 rack mount running off of the firewire 400 port at the same time (when both ports are in use at the same time, the 800 port can only run at 400 speed), and daisy chaining is not something that I want to do long term.

I already have a nice Seagate Freeagent Pro hard drive that has eSATA capabilities, so all I would need is the expresscard.

Thanks in advance!