O Allah! This is the month of Ramadan in which descended the Qur'an as a guide to mankind and a criterion to separate truth from falsehood. O Allah! Bless us in the month of Ramadan, and give us Your help and accept our ibadat, for You have power over all things.
There is no god but Allah. We seek Your forgiveness. O Allah! Grant us Paradise and save us from Hellfire.
Ramadan mubarak, and remember my family and myself in your duas.
UPDATE: And, happy Rosh Hashanah! I love these Abrahamic convergences :)
(aside - regarding the moon sighting issue - thank god for ISNA's decision. Zack has a nice roundup and comment. I have little to add that I haven't said before on the matter. We Bohras use the Hijri calendar as described here, and which also powers the salaat timings tool you see at the left sidebar.)