Wetmyson wrote: if i don't drive the car for a week or two it drains the battery so i have to disconnect the batt. cable.
Sounds like you have an electronic system staying on. You need to check the parasitic draw on your battery.
As for the car alarm suggestion. I hook up mine myself so not much help there. Aftermarket shops run deals time to time so I would call around. A professional installation shouldn't yield any problems. Do your homework though cause there are many different systems. IE- motion sensors, tilt sensors, glass break sensors, starter disable.
Of course, full coverage and receipts is always a good way to go too.