I liked the shoes with shadows better, it helps anchor the product. You might want to check craigslist or put an ad out as a for trade, I've shot product before in exchange for the product itself. It was good advertising for both because it went up on my facebook/website and my name went up on hers. I agree though, don't worry about the camera get a better lighting set up. You can get a backdrop stand with muslins for fairly inexpensive, and shoot on days where you have sunlight (and then edit for color balance) or even an overcast day
ETA- If you open your images in ACR it has a dropper for easy WB