Intruder alarms - wired or wireless?

The real scum don't care.

I knew somewhere where two scum kicked a garden gate down, walked into the garden, threw something heavy through the patio doors, walked in and took the TV. They had an alarm and a dog but it it didn't help, oh and the family was at home too.

Thanks for the replies. I went to my electrcal dealer yesterday, and got one of these:

Recommended by them, the main box can be fitted anywhere, you then only have the keypad(s) on show, there'll be 2 of those, front and back doors. The sensors and bell boxes are all sold separately, as well as the window/door detectors, which I dont think will be bought. Sensors are fitted (generally) at the wall/ceiling join, so no problem with decoration to fit them afterwards, or move position.

The house certainly needs an alarm, as the recently fitted front door can be forced open in 10 seconds (guess how I found that out!).

Thanks Alan.