Emma Jones's book Spare Room Start Up, one of the books on my recommended list, gives a breakdown of how you can start your small business for under £500 - and that includes the price of a bottle of bubbly to celebrate!
The most expensive item on her list is a £335.99 laptop.
But you really don't need to spend that much on a computer.
It's not unknown for big organisations to off-load their old computer equipment in return for a small donation to charity. £25 to the Air Ambulance, and hey presto, I have a desktop. OK it's a few years old, but that doesn't worry me. In fact, I'm glad it's an older model, because it's running XP, not Vista.
And sometimes people even post computer equipment on Freecycle, and that means you could get it for nothing.
You don't need a top-of-the-range Apple Mac, or even a mid-range laptop, to be successful in home business. Spend your money where it will really make a difference - on a good website, or professional business stationery.