tegwin; I don't think you are understanding the comments made or you don't want to. You cannot sit at home and press buttons and succeed in being a dealer. Those who try, give an illusion of great success until they mysteriously disappear from the market. You need to get out of the house and outsource for your inventory. There is a reason no one mentioned eBay as a source for product. Even one former power seller never mentioned eBay as a source of supply. You need capital to start your venture. Sales don't come first, they come after you properly establish yourself, and you need to be ready for very small revenues to start. There is the cost of inventory that you need to have on hand. If you are just starting out in collecting, you don't have enough to maintain or survive a sales drought. You need experience in everything. That's why you start slow so the mistakes you will make (guaranteed) aren't overwhelming. You need to educate yourself. Don't do it at the expense of the business your trying to create. The education needs to come from the buying side and the selling side and it will be a slow process. Now if you want to try and sell one or two of your personal items, I would recommend it. It can be a real learning experience. It will also give you an indication of what is expected of you as a seller. This may be more in line with your original thoughts anyway. You might have been a little quick in the use of the word "dealer" than you actually intended.
The greatest compliment one can receive is when someone tells you that you make your job look easy. They may not even say it in those exact words, but instead of being put off, you should always take it as a sign of your skill
It might be easier to get a start in coins if you are just trying to get the dealer knowledge. I do some selling on eBay, and it I not really all that hard. Just pick one kind of coin/note and try to 'specialize' in it to begin with. Coins are great to start with I believe because of the silver market. It is quite easy to buy mercury or barber dimes for melt value, and them sell them on eBay for a small profit. A few months ago I bought some mercury and Roosevelt silver dimes for $3.14(current melt at the time). And have been able to sell them quite successfully. I actually have a dime on eBay currently at $18.01 that I purchased for $3, with almost a day remaining. You just have to understand the coin/note world pretty well to do any good at all.