James, the largest problem with the 2000-2001 pistons is that they are 10.0:1 compression, which is relatively high for a turbo application. Now, if the pistons were forged, it would be a different story, as forged pistons have a higher tolerance from things like detonation and pinging due to their stronger design. The pistons in out cars are cast, which is recipe for a weaker piston.
Alas, look at the 2.2-T engine, a lower compression piston, but not forged either. As you can see, if the engine is tuned right, then there isn't TOO much to worry about. But, then again, this depends on how much boost you plan to run. I personally will not run anything more than 6 psi on the stock motor, no matter how rich my A/F is.
I think that my advice to you is James (considering your at 6,000 ft.) don't run any more than 7 psi and you should be golden, just remember to keep a slightly rich mixture and get TIMING CONTROL!!! I can't stress it enough considering the disgustingly huge amount of advance our cars run. I personally am running an Apex ITC and a J&S Safegaurd.
Graham