Donating blood

I've never given blood in the past because every time I try, they reject me. I'm borderline anemic-- not really anemic but just enough that they don't want my blood. I've been taking iron for a while, though, and I figure I could perhaps give blood now, which would be a good thing to do in the aftermath of Katrina. Alas, I just checked the American Red Cross site, and "nursing persons" are not eligible to give blood. DH can't give blood, either, because of this guideline: "If you had leukemia or lymphoma, including Hodgkin’s Disease, you are not eligible to donate." He had Hodgkin's disease when he was younger, so that rules him out. I was pretty sure neither of us could give blood, but it doesn't hurt to check.

How about you? Can you donate blood? If you can, go do it. Please.