Tweaking Your Mac - Djing, ideas on how to optimize my mac for djing Options

[apachateca]

hey there everyone- posted this also over in a logic forum, so i apologize, probably more fitting here.
anywheys- looking for advice on what i can do to my deck- a G4 1GHZ powerbook, to turn it into a dedicated dj machine. i will probably be using ms pinky and some dj program, along with turntables, in addition to the hercules dj controller and maybe a midi/firewire capable mixer. might get rid of hercules, idk yet.
i would like to know how i can run my computer with the lightest load- i.e.- what programs don't i need, or better yet, what is the minimal basic mac frameworks that i do need. i want it to be super stripped down, a dedicated djing outfit. no internet, no music production software, no superfluous languages, no graphics programs i don't need, etc. any thoughts would be greatly appreciated. look forward to hearing yur thoughs!