i agree with Chris Rogers.
brant have one of the top alarm systems (the nemesis i believe). 6 point immobiliser, black wiring, key pad pin protection etc... recommended by majority of the insurance companies.
as for quicktrak i thought that it's a satellite tracking system - insurance companies have this as a step up from the alarm system. i'd get both.
get a prolock. make sure you put it on the same way as on the instructions (key hole facing windscreen not the seat) - it makes it that much harder to remove. plus the visual deterrent factor is handy.