Ok, first of all get yourself a good accountant to make sure you are properly set-up. The GST issue with imports can be confusing. If you are not good with the paperwork, then consider a bookkeeper to do the monthly processing for you. Don't think of it as an expense, but as allowing you to spend that time making money.

Find a good website host and possibly a designer. A good looking web page is a must and find someone who knows how to get it listed on the search engines. Think about marketing, banner ads etc. Not much use in selling a product that people do not know about.

Costings - work with your accountant or bookkeeper. Find out what your fixed costs are (site hosting, wages, advertising etc) and variable costs (cost of goods, postage) and work out what you should be selling products for.

Training -where are you lacking in skills. Do you need to do a basic word/excel courses or even how to use your accounting software. I think there may be adult ed courses on how to start a business.

Have a chat to others who are dong something similar, but don't expect to hand all the info over. It is nice to see that someone has done a bit of their own research before helping them. The Vic government has a good website about starting up a business.

Could go on for ages, but I think this should help.