Checklist on doc required b4 heading to doha

Dear All Expat that currently in Doha,

yr valuable input is needed. what is the doc and cert that needed before heading to doha. i'm quoting my situation/ chronology:
1) got email from the future employer (Commercial Bank of Qatar) attached with the L/O on 4/6/08. (mentioned to accept but don't resigned until further notice).
2) accept L/O on 9/6/08, scan and sent back together with photocopy passport, and uni. certificate.
3) receive an email from future employer on 18/6/2008 mentioned .... now u can tender from yr existing employer with the 1-3 mth notice period.

my question?
1) what is the next step? are they going to send all the original L/O, e-ticket(via courier), pls advise...

2) i heard we need to get the letter of good conduct but when i ask the hr from future employer mentioned no need.

3) last but not least, all the cert need to be attested is it??, how the procedure? is it first go to comm of oath after that endorse by our foreign ministry at the country of origin and lastly by Qatar embassy in country of origin?

4) what is the cert that need to be attested?? degree qualification, married certificate, son birth cert... pls advise.

5) did all the cert need to be translate to english in country of origin.

pls addd! tq