Public Bikes makes a really nice front rack and basket:
http://publicbikes.com/p/PUBLIC-Front-Rack
http://publicbikes.com/p/PUBLIC-Rear-Basket

It's hard to attach a quick release basket to a porteur-style rack, because most of the quick release baskets use spring-loaded "clips" that don't expand wide enough to attach the wide porteur rack. While the Public front rack isn't a porteur, it is fairly long, which is beneficial in that it can fit standard panniers and it's got a fairly large surface area to attach things to the top, even without the basket.