Thanks for the suggestions. I found an oil based grout stain made by
Bostik. I'm going to attempt this in a small area to see if I like it.
If it is not to my liking I also purchased a grout sealer/enhancer
from Lowes made by AquaMix. I'll give an update on once I try the
stuff out.

-- Ian

Bostik CeramaSeal Grout Stain
http://www.bostik-us.com/products/in...egoryPageId=19

AquaMix Color Enhancing Sealer
http://www.aquamix.com/for_home_use/...450&pgid=37155