One thing that seems to come up consistently in guidelines for maintaining healthy skin-ecosystems while breastfeeding (avoiding thrush, etc.) is the idea that breathable, non-waterproof pads are best, and airflow is important. I did check out your link, almostfullhouse, but I think I probably wouldn't buy them due to the description of their "waterproof" qualities. I was also turned off by the "your nipples are sore!" statement on the website-- I hate to see the idea that breastfeeding is painful perpetuated unnecessarily.
cparkly, I went over to ebay and got a set of pads from the same seller, after you mentioned it! I think the huge ones I've got will be good for overnight (I'm betting they'll stay in place better than the folded newborn prefold I usually use....), and the little ones for day. I don't tend to leak much after the first few months, but it's nice to be covered for that interval.
Farmer Cathy, I love the idea of knitting pads, but will I...? That pattern looks good though!