PLease STAY AWAY from Doba. Their prices are near retail, or what you could find on the clearance rack of any major dept store. Any items worth selling are *ALWAYS* sold out.
The only way I could see using Doba is if you have your own Retail website, or are looking to stock your own birck-and-mortar store. You will not make money on EBay with them.
They charge about $2-$5 per order just to drop ship On Top of the price of the item. If i remember correctly(Which I might not) Shipping was min about $8.
They just east away at your profit.
I joined for my free 7 day period, called and cancelled and they STILL charged me. WHen I called back up they did a song and dance and they try to convince you they are true wholesale but they are not.
Little Hint: If they do not REQUIRE a resellers License, they are NOT Wholesale!
Hope that helps a bit :)