That is just the first one that showed up on a search. Again, no idea if it works, works well, or even designed to last. But it takes just a bit to find things, just need to look. Now, if you know of a docking station to hook an external monitor, lan cable, and mouse and keyboard to one, that I would love.
Thanks, circuitdragon, for your help. I may go for the keyboard you found on your search, though I'm still curious is anyone has paired one with a Captivate. It seems some people have had trouble pairing this particular keyboard with some phones.
I would suggest talking to Samsung before you buy anything. According to this page, the Captivate doesn't have the HID bluetooth profile.
I think that would be very good advice. Looking in to the one I posted more, it does not say it wants the HID, but instead is using SPP (new to me), but still, I have not been able to see any listing of this for the Captivate either. So, though I highly doubt that this is not possible for the phone to do, the real question is just which devices will work correctly with the phone. Sadly, it seems up to the same company that can not seem to update their own devices, to provide "possible" insight to this.