My comments are a little late, but I'll add them anyway. I have an account with DBL, and it seems to me that the pricing is generally pretty good. They encourage you keeping your own inventory by offering a lot of specials that offer discounts off their regular catalog wholesale prices.
As for dropshipping, they offer two sort of service. If you have an account where dropshipping will comprise less then 50% of your business, they charge a $4 dropshipping fee. If you have a fulfillment account, where dropshipping will comprise more than 50% of your business, they charge a $3 dropshipping fee.
According to a DBL sales rep, it is against their TOS to sell their goods on eBay.
WYNIT is another wholesale distributor with good reputation. They also provide dropshipping but at no extra cost. I do have an account and find them to be proffessional and reliable.
I will add concerning eBay, that it is really hard to sell consumer electronics because it is to competitive. Buying large lots of liquidate electronics brings the price down so that you can be competitive, but for many of us, buying that large lot can be pretty expensive.