Regarding Ugg, originally an Australian licensed brand, in fact they were pretty much a house hold name in this country for many years. The brand was sold to a US company around the mid nineties from memory, and I'm pretty sure it was Deckers that bought it.
I'm not personally aware of any drop shippers or wholesalers, but I think it would be a good idea to contact Deckers direct and get some details on their distribution network. I'm sure they would be more than happy to assist with that inquiry, and possibly open a supply avenue up for you.
BTW, those ones you were importing from China, may well have been good quality, but they weren't authentic. There are a tsack of imitations that people all call Ugg, thinking that's just the design name, but the name Ugg is a fully licensed brand, and a brand that has been heavily protected for many years.
Regarding Video Games, extremely competitive market on ebay in the US and UK. You can find suppliers that have a solid range of games, but you really need to establish an account with them.
Even with an account, most suppliers work on a tier system, the more you spend on a purchase, the better the price, and to get prices good enough to compete on ebay in those two countries, you need to be spending quite big and holding a lot of stock.
Regarding the bling, now China is your market for that. You would have to be importing in large enough numbers to make it worthwhile with your shipping and what not all to be taken into consideration, but you won't find better prices on that type of item that you will in China.
You may well be able to find a drop ship source as well, although I wouldn't imagine there would be enough of a margin on something like that to be competitive.