Thank You Letter

Dear seniors,
Yesterday i had a interview in dairy industry for HR executive, first round interview was completed.There is final round interview in next week.I am keen interest to work with Dairy industry ,so i want to send Thank you letter for HR manager express my interest and thank you letter . How would i draft mail/letter ? I need sample letter , pls share with me .

Hi Prasad,
here i draft sample thank you letter
for your persual,
i hope this is helpful to you,
Dear Sir,
I would like to thank you for the
job interview and the time we
spent speaking about the (Marketing/Hr/Finance) job position in your organisation dated on 12.03.13.
I hope this small interaction may
later translate into a Fruitful
Professional relationship.
Please find Enclosed a list of
references that you requested.
I look forward to hearing from you
regarding your hiring decision.
Again, Thank you for your time,
consideration and for all your
Efforts to arrange the Interview.
Thank You,
Your Sincerely,
(Your Name)
Smilesat.

Sir
[ Madam - depends on who conducted your interview and who are you mailing to. Many people write Sir/Madam on thank you mail - complete no-no since you've met the person, you are aware of the gender and do not generalize the mail. ]
This mail is in reference to the meeting we had on ______ for the discussion on the job role of __________ with your esteemed organization.
I am honored that I was able to meet you in person and the interview widely covered a lot about my profile and candidature. Though most of the things would have been cleared, I would be pleased to offer further insights to any related area when required.
Furthermore, I would like to thank you for sparing your precious time to be able to meet me. I would also like to extend my gratitude to the staff members who helped me with the process and thereby boosted my self confidence.
Best Regards,
XYZ