good luck! I travel with audio recording gear (mics, cables, pro minidisc deck, etc) and ALWAYS get hassled.

On my last trip, I was placing the recorder into a plastic bin at security when the tsa employee barked "only computers, everything else can stay in the bag."
Of course, no one recognized the deck for what it was, and the bag was screened twice before they decided to do a closer inspection. The TSA employee reached into the bag, picked up the recorder, misjudged the weight of the deck and was close to dropping it on the stainless table, when I reached out my hands to catch it. (after all, not only is it a 2k deck, I need it for work!) He mumbled "thanks," and then barked for me to stand back and let him do his job. After punching all the buttons and shaking it around, the gear was then jammed back in the case, upside down.

Luckily, it seems to be working just fine. I can only imagine what would happen if I had to call in from the road and say "the tsa broke my recorder, I can't do any interviews."