Hi K. - my vote is for the Lansinoh ones (you can buy them at Target in the baby section by the pump supplies) or the Medela ones (I think I picked these up from BabiesRUs). They are both exactly the same in my opinion. They are VERY thin, very absorbent, and do not show through even just a cami that you put them in. I wore these daily this summer when I first started breastfeeding and leaked like a faucet and would wear nursing tank tops. You could not tell I was wearing a nursing pad (which you could with the Gerber) and I NEVER leaked through.
The nice thing is, your milk should level out a bit and you won't leak like you do now forever. I heard this from my sister and a couple of my friends, and thought I would be the exception to the rule. Now almost 6 months after my delivery, I really don't need to wear them anymore. I probably didn't at about 4 1/2 or 5 months, and just never really noticed until recently when somehow I forgot to put them in my nursing tank one day. So you may not need them forever!
S.