I thought some may be interested in a new product which seems to be economical, I personally haven't tried it. I get "google alerts" sent to my email of new breast enhancement products/technology. Here is the link if one is interested.
www.prweb.com/releases/2009/06/prweb2586684.htm
Also, there is a breast cancer clinic in the UK who is starting to use a women's fat stem cells for breast enhancement for masectomy patients and it is soon to be available to the public there. Sorry I don't remember the name but I'm sure if it was googled it wouldn't be hard to find.
I think the fat cells you are talking about is the same this as fat transfer, where they liposuction fat from one part of your body and put it in your breasts. Few doctors in the US practice it because it causes lumps in the breasts, not cancer, but lumps that interfere with cancer screening.
True it is from your own fat but it is the actual stem cells from the fat that they are injecting into the breasts not the fat itself. The stem cells are supposedly stimulating growth in the breasts. 30 women from the UK have tried it with success so far but the long term effects are questionable like all things I guess.