Revised - I meant external DVD drive, not HDD:
I could really use an up-to-date SIMPLE, step-by-step guide to ADD the new Mac OS 10.6.3 (using new retail disk) to newly updated Windows 7 Professional Dell Mini 10V (Nickolodeon version) for dual boot using an external DVD drive (without existing MAC - I can also use USB flash drives).
I know that there are so many guides here that cut and paste and link to other guides, but it's quite confusing. I would really appreciate an update that addresses all of my wishes

Specifically, as noted in the thread title: Up-to-date guide to ADD Mac OS to Windows 7 Professional for dual booting using an external DVD drive. Anybody??? Thank you!