Freelance Rates. When exactly would I be better off donating a kidney?

I'm a young freelance journo. I haven't been going long, but I've been steadily earning kudos, and the odd editor has chucked me on the chin with a "you'll go far, kid" kinda email.

I've had R0,75 for a word, and I've had R2,50 for a word.

So I'm wondering. What's a good rate for a young, (possibly hypothetically) talented freelancer? Someone who's level would probably be two or three rungs below Lev David's stuff, or pre-plagiarism Darrel B-B.

And if you happen to be a copy editor...Yes, we know it's actually you guys who make the freelancers look good. Just imagine we actually deserve rates, then suggest a figure.

Thanks all
Simon