Jae, I'm not saying anything bad but you have to think about it...
Your 2K2, non SE-R, Sentra got stolen. I'm sure that everyone's first reacton was that sucked big time. The second reaction was "who'd steal that?".
Anything short of a Kia > 2K2 Sentra 1.8
If you get a RSX and you hook it up, know that your RSX is going to be the biggest car-theif bait parked on the street no matter what alarm system you put in there.
I'd just hate to see you post up in a few months "My car is stolen Again" or "My windows got smashed for the 3rd time."