You shouldn't have any problems with the airbags, I don't think they were even an option in 2000 (at least I know my '00 ZX3 didn't have airbags). You'd basically just make sure to connect the wiring for the seatbelt sensor and bolt them in. The only other wiring you might have to do is if the seats you're installing have power height adjustments or seat heaters. I put a set of SVT seats in my '00 ZX3 and it was a breeze.
*edit* Just realized that you had an '03 (I somehow read it as an '00). The premise is the same though; If you already have airbags, you'll just have to make sure to connect them. If you don't have airbags, it'll be much easier.
Well I'm hoping to get to the place to pick up my new seats today. We have had 14" of snow in the last 8 hours and my fofo is buried I tried my hardest and only could get half way out the parking lot. I'm waiting for my room mate to get back in hopes that we can take his Buick and go get them.
Yea they do. The only problems is the ones from four door cars don't tilt forward for rear seat access like the ones in the ZX3's do. So you have to go from four door to four door or 2 door to 2 door. Don't know bout the 08 and up stuff though.