Cheap Dr. Marten Lace Up Boots? Imitations, Even?

I love those Dr. Marten lace up boots but am very strapped for cash. The ones i'm talking about are the ones that you see Angela wearing all the time on "My So-Called Life" and a heap of other places. So if anyone knows any cheap ones or even imitations, please tell me becasue i'm itching for a pair.