Consider an all in one printer, scanner and copier as it saves space. You can also get one with an integral fax machine, although you can also use an online fax services from your 0844 number provider or Efax if required.
You will also need a shredder for confidential documents and you may need a transcription pedal if you offer the service and are asked for it and potentially a binder, laminator and guillotine again only if you need them for a specific job or your own use for marketing materials.
For lots of advice and free tips, check out the FREEBIES page at the VA Success Group