New to Macs, Mac and Logic Options

[paadekooper]

Hi all-

While being a relative veteran of midi-based music production (in a windows environment) I recntly switched completely to Mac. Currently I have, PowerMAcG4(512k Ram), Logic Platinum, JD 800 ,AudioSport Quattro. For the life of me, I can't get the Quattro to work with Logic (ASIO driver problem) Any Advice?

Also, can any experts recommend the ideal configuration of my MAc system for recording. I.e. which applications, extensions, programs, files should I erase for optimum performance - my Mac is for music only. Also, I have heard I should invest in a second HD for audio. Any comments?

Thanks