Hi Friends, 
I am already in US working in H1b Visa. I am few of the fortunates to get selected in the DV Lottery 2012. I am not sure what should be my next steps. I understand I have to apply for change of status once I get the confirmation letter from USCIS. I am not sure what are the requirement for that, what are the required documents. 

I f any of the sajha users could share their experience in similar situation it will be very helpful.

Thanks in advance.