It depends on what you will do with Cakewalk... but first of all, what version of Cakewalk ? Sonar ? HomeStudio ? Do you work with MIDI ? Soundcard ? Do you need 24 bit 96 KHz ? How many input ? etc... etc...With cake walk do i need anything else on my computer besides Windows xp to run it?
Believe me... no one can tell you if you don't post complete info of yourself...Do I need anything else to run it better?
Maybe yes... but may be not... some of us used separate PC for DAW and Internet activity. Some other used their DAW to surf also... Keep in mind that (whatever your connection) having internet acces will give you bunch of beneffit...Should I have internet access through the computer for upgrades?