I dont think you will have any issues..... the limits on personal electronic items have been relaxed so even if you have 2 cellphones, a tablet and a laptop you will still be OK in terms of your personal allowance.
Customs is after the "locals" and specifically, they look for commercial scale electronics.... I just returned from Miami Shopping with the Family and we had checked in 8 (eight) bags. We threw all our stuff into the scanners and didnt even get a blink from the 2 Customs people that were looking.... and this was at EZE, which as noted above, is a lot more "strict" than AEP.
You will be fine.