You cannot deduct the expenses from your residency interviews. Here is what the IRS says:
"You can deduct certain expenses you have in looking for a new job in your present occupation, even if you do not get a new job. You cannot deduct these expenses if: 1) You are looking for a job in a new occupation, 2) There was a substantial break between the ending of your last job and your looking for a new one, or 3) You are looking for a job for the first time."
You are just becoming a physician so you are looking for a new job. In addition, job search expenses fall into the Miscellaneous Deductions category which means that you can only deduct that amount which exceeds 2% of your adjusted gross income. Also, keep in mind that unless you own a home you are not likely to benefit from taking itemized deductions on your tax return.
The big benefit you will have on your 2005 tax return is the Lifetime Learning Credit. This will allow you to take 20% of your education expenses, up to $2000, as a credit on your tax return. This reduces your tax burden by $2000, it does not just reduce your taxable income. That said, I had several friends who were unable to take this credit because their schools took their loan money for their final semester of school (the only semester which is eligible for the credit) and applied it in December instead of January. Check with your school to ensure that your loans are applied for the 2005 tax year so that you can take full advantage of this credit.
For more information on taxes, check out this publication:
http://www.irs.gov/pub/irs-pdf/p17.pdf