Carrying flight gear on the airlines

I'm helping a friend move his plane down to Florida for the winter
and will be flying back on the airlines. Since I'll be bringing my flight
gear(headset, handheld radio, GPS, flight bag, etc..), is there anything
that I should avoid bringing so the TSA doesn't finish their Christmas
shopping with all my gear? I'd hate to be told, "nope, you can't take this
GPS, or this handheld radio". "Hmmm...bubba sure gonna like these
presents...". ; - )

Any help would be appreciated.

Pete