I love my G4.. It runs Ettercap, Ethersniff, MacStumbler, KisMAC, Snort, NMAP and a whole host off Free GNU software and Hackware and its totally customizable... It's making me cum in my pant's!! LMAO
I only recently swapped over to OS_X after using WinXP Home edition for three years.. I love it to bit's.. The first thing that strikes you is how less it fucks up!
The second thing that strikes you is it's a real OS, im gonna be reading my Unix bible for the next comming months.. Twice the ammount of command line power, multitasking.. oh god.. I lub it!