Computer Djing Options

[apachateca]

hey everybody- i'm looking for advice on setting up my mac for laptop djing. right now i have a 12" powerbook G4 1GHZ that i would like to use for laptop djing, probably with ms pinky. i would like to know how minimal i can get it. i only have a 40 gig hd in it, so space is limited. i would like to know what is essential to run just a dj program. what files can i get rid of, what programs don't i need, etc. i'm talking barebones stripped, focused solely on djing, no intertubes, no logic, no garageband, i can store my tracks on a thumb drive if need be, but i don't use them so i don't know how much space they really have. thanks for the info, especially from any hardcore geeks/wizards out there. peace!

[apachateca]

i do have all my music stored on a firewire external drive, but i would like to keep it more minimal, i.e- only load the songs i need on the internal drive. i will be using turnatables for records, but also want to spin some digital files... if i am not using the full capabilites of ms pinky, should i stick with serato?
also- will a digital turntable with a digital mixer allow me to control digital files? would i just need timecode vinyl in such an instance? thanks for yur thoughts- keep em comin ;}