I have received 2 W2's. One is for OPT (till 31st September'09) and the second one for H1B status (from 1st October'09).

I am going to use turbo tax deluxe to e file my taxes. What things should I keep in mind while filing ?

All advice will be much appreciated. Thanks.

Do not file your tax return using TurboTax.

TurboTax will not do nonresident tax return. Your U.S. Tax Return: U.S. Tax Filing Requirements for Non-Residents (http://taxipay.blogspot.com/2008/03/us-tax-filing-requirements-for-non.html)