H1B Stamping for In House Project Need Help

My Petition for H1b is approved for year 2013-2014. It is an In house project as mentioned by employer in petition. What all documnents are required and What type of interview questions can be expected while stamping. Please suggest

For in-house program they might ask why not L1 and why H1 visa. Be ready to answer that.

Hi Snowwinter . Thanks for your Reply. But my Emplyer is New one not the one which am currently working. US employer filed my H1B and Petition is Approved. I need to go for stamping now… Please suggest …