I would like some help on deciding my purchases. Right now I am in the midst of trying to buy 3 units, all containing the 3 functions listed above. I need one for the Legend, my fiance needs one for her Altima, and I want to buy one for my sister's Cavalier for x-mas. My Legend has nothing, the alarm system was disconnected by the original owner due to ambiguous alerts. My fiance's Altima has an aftermarket remote start and keyless entry, but it stopped working and I was told the unit was burnt out. My sister has an alarm system and keyless entry, but no remote start. Best Buy has a Viper unit with all 3 functions for $200 w/free install, but if I could find a better deal on some units, I know a guy who would probably install them for $50-75 per car. I saw some units on ebay with all three functions for like $55 shipped. They're obviosly cheapies, but does it matter? They say they have a 2000ft range!?! check 'em out on ebay What are the pros and cons of cheap and expensive units? What should I do for the 3 cars?