Hi maddy78,
Welcome to SaleHoo! :)
You will see that each supplier profile page contains information indicating whether or not the supplier offers drop shipping (among other things). This makes it easy to target drop shippers specifically in your search. You can also filter your supplier search to those that can drop ship. If you haven't tried using the directory, you can just click on the ‘Directory’ tab which you can see at the top most part of this page. Then type in the ‘Search’ box the specific product that you need suppliers for. On the same page, click ‘more options’ to filter your search - by type of suppliers (drop shippers), by location, among other info and tick on the box that says ‘ships internationally’ for the search to retrieve those suppliers that can send worldwide. OR you can just let us know what products you need drop ship suppliers for and we will be more than glad to help. So yes, you can do business all over the world like US, Canada or everywhere else.
As for your own address being stated on the customer billing, some drop ship suppliers allow blind drop shipping, they will use your name or company name and address on the package so that it looks like the package actually came from you. However, note that if you are listing at eBay, you are required to declare the actual location of the product/ or where it will be coming from.
Have you read the links Richelle has suggested? They provide good information that can help you understand clearly how drop shipping works.
Let us know what you would like us to do. Selamat datang! :)