Urgent: Change in Client Location - H1B and LCA Amendment req

[Nagesh]

Hi Folks,

I have my H1B visa valid till 2013 and endorsed in Nov-2010 with my previous client (E-V-C) in State 'A'. After my visa endorsement, I moved to a new client(E-C model) located in different state - 'B'. My employer filed an LCA amendment but not H1B or I-129 amendment. Please let me know:

1) If there needs to be an H1B or I-129 amendment even after the LCA amendment.

2) *** Would this be a Problem at the port of Entry ? {Provided I have Client Letter, Employment Letter, LCA Amendment, SoW/PO/ Contract }

3) If there needs to be an H1B/I-129 amendment can I go for premium processing.

If so,is it safe to do a Premium process (E-C model) and the processing time involved.

I appreciate your reply at the earliest as I have my travel plans in less than 2 weeks.

Thanks for your suggestions.