Hey,
Im looking into purchasing a new car alarm. I want to get something good, and possibly a 2-way one that'll show me whats going on. I am willing to spend some money, and will be doing it all myself to ensure that it is done right. But im trying to find a good alarm that will give me these capabilities:

I want to add in:
*Power windows up/down(so i can roll them down w/the remote and it still be armed)
*a proximity sensor
*the vibration/knock sensor they usually come w/.
*a battery backed up siren
*and possibility for some other toy like dome light activation or something.

I dont need auto start/defrost.

I have heard that matrix, DEI, and clifford are good alarms, but its quite annoying looking online, cuz there is soo much different stuff on everyones website. Im guessing there are only a few different manufacturers, and they have a bunch of separate smaller names. But what would you guys suggest. I was going to go to an audio store... but im not sure how much help they will be, since they just want you to buy something from them.

Thanks for your help.