First of all, I want to remind abu dana that the way I'd spell Nadine is:
نادين
As for you hesitation yaa Nadine between anti and anta, is it that you doubt about abu_dana's gender?! Ahem..He is an "anta" if that was what you asked about!
As for kayfa al 7awaal, it's correct. You can use it for a change
Sho akhbaarak/akhbaarek isn't fus7a as abu dana guessed.
Did I miss anything?
For chatting in Arabic, I never tried the chat room here with Arabic, but I don't think that it's possible there!
You can use msn or yahoo instead, both support Arabic if you are it installed at your computer.
I suggest that you can open a free thread for chatting whenever some of us are around, and you want to write fully in Arabic. We'll be glad to help correcting :-)
َََ
َ