Well, after reading the pros and cons for a while, I finally decided to de-snork my 2001 today. Took all of 10 minutes (5 for the actual process and aother 5 to repair and band-aid my wrist that slit when I was pulling out the snorkel and not paying close enough attention to where my wrist was!). Been on a short drive and can only tell a difference in the sound when I get above 3800 or so RPM or so it seems. Nice sound when you step on it. Here's a link that works perfectly to de-snork that I found on ppbb.
Great De-snorkel link
Easy to do, just watch your wrist.