citroen999

i need a camera set up that i can monitor when i get home from a laptop. I need it to alert me via my laptop/phone so i can login and watch and record what happens and mybe contact the police from home. the culprits are not entering my premises, they are throwing bricks from across the street. So i need to be able to record them in the act, after doing a quick reccy of the area i think they are throwing from around 25m away. does that make sense? i not too clued up on cctv, just looking for advice and help.

i need a system that i can monitor my car pitch from home at night.. its been atatcked 4 times this week and i as i have only been opened for a month i dont have much to spend. they are throwing bricks from outside my fence onto my cars. i have heard of systems that can be monitored from a laptop at home and recieve mobile phone texts to say there is an intruder, also i would want an audible deterent, like a recorded message saying police have been informed and are on the way etc. can anyone direct me in the right direction of what system i need, the bricks are coning from upto 20m away. i am in sheffield UK thanks