Nice desk, comfortable chair, pc or laptop w/ necessary software, printer, fax, copier, scanner, mouse &pad, external HD or many flash drives, CD/DVD/RW drive, webcam, phone landline (two if dedicated fax), calculator, pads &pens, lamp, maybe a headset if you’ll be on the phone a lot. That should get you started.
A computer system with high speed Internet (typically DSL or cable). You might get by with dial-up speed but then you need a second phone line. Probably a laptop would be best; you may want to take it elsewhere. I'd get a combo printer/fax/scanner/copier. You'll want supplies of paper and ink.
You probably want a desk with at least one file drawer; you may want a file cabinet.
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