You really want a monochrome laser printer. You do. The cost per page is so much less than an inkjet that it's not even comparable. We're running an HP Laserjet at home that has needed toner once. It was $50.
The scanner...I'd recommend a Canon flatbed that's powered by USB. They have excellent build quality, and since they're powered off the USB port, they have one less cable.
You can use the money you'll save on toner on OmniPage Pro 15 and get everything looking right and be able to convert PDFs to editable text at the same time

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Thanks,
Mitch