He can file jointly with you and you both CHOSE to be treated as resident aliens. This will allow you to claim the $11,400 joint standard deduction plus two $3,650 personal exemption (for yourself and your wife).
You will need to submit Forms W-7 to apply for an ITIN for you if you have no SSN. A notarized photocopy of your passport needs to be stapled to the W-7. You can get the photocopy notarized at any local bank or, failing that, at your local IRS office.
The downside is that you must WAIT to meet the Substantial Presence Test before you can file, which means you must wait until 1 June 2010.
Even with the downside, this is probably the best way for you to file.
If you want professional help doing this, email me at
[email protected].