Me, personally I'm afraid of Nitrous because I have no experience with it. I have experienced the damage it has done to others. The problem is there's not much room for error in experimentation. It's one thing to experiment on a car you can easily afford to swap another engine in when it Grenades, but not really an option with your Lambo. If you decide it's an absolute necessity then it would be wise to research and install a tried and proven formula of parts and Tune to minimize the risk (which will always be there, watch youtube nitrous fails).
Nitrous was popular and worked really well on Carburated cars, but it gets tricky w/ Fuel injection. The cash outlay is the least upfront for power adders, but also makes it the least reliable and somewhat of a pain with bottle temperature, pressure, keeping it filled, etc. Sure, the turbo and supercharger systems out there a pretty expensive, but they're engineered (usually) for safety and reliability. Is there anyone who offers a Nitrous Oxide 'kit' for the Gallardo with proven long term results ??