While setting up a home office depends in part on how much space you have there are certain features that any niche blogger working from home is going to need in order to make their company a success.
First of all you will need a computer with Internet access. You probably already have one or you wouldn’t be considering an online career. If you don’t, however, focus on getting the fastest one you can afford. It would also be helpful if it came with Microsoft Word but you can always buy it extra if not.
Next you should get a computer desk. Look for one that will hold your computer, keyboard, mouse, monitor and printer while leaving room for writing and research materials as well as random office supplies you will need.
If space is limited you should consider getting a 4 in 1 printer/copier/scanner/fax to suit all your needs in the smallest area. In the last couple of years the price of these machines has come down considerably.
The office chair you choose should be comfortable and mobile. If there is anywhere you should spend a little extra money it is on your desk chair. Since you will likely be spending hours sitting in this chair, you want to be sure to get maximum support for your back and legs.
A calender may be helpful for keeping track of your schedule. A cork or dry erase board is helpful for keeping tidbits of information as well as your to-dos.
You will probably want to get a four drawer file cabinet. You will be printing out research material, receipts for web services and other papers related to your niche. Additionally you will collect books and files and all sorts of scraps of ideas and information.
If space allows you may also consider purchasing a bookshelf. Over time as an niche marketer and blogger you will likely find yourself collecting many more than a few books and having them on a bookshelf eliminates the need to dig around in drawers or piles.
Lastly, although no necessary, you may want to have some personal mementos and inspiration do-dads. Being able to draw from something to motivate you forward when you feel like giving up is a good addition to a home office.