Re: Very small newborn clothing
nextdirect.com carries a "new baby" size perfect for preemies, (they also have "up to 1 month" size when they start to wear newborn, before the 0-3 size). It is a UK company but shipping is low and fast so we usually have our package within 5 business days. plus their baby clothes are CUTE CUTE CUTE! especially if you are looking for something different from the usual US brands..
I would also recommend avababys.com for fancy outfits dressing up your tiny bundle, as well as jacquispreemiepride.com and www.preemiestore.com (both the latter sites also carry NICU friendly clothes)
We had one preemie saque from carters that we loved it was long and narrow (but tiny) and kept her bundled nicely