Southgate
Southgate is a fairly prominent mall on 111 St. It has arguably the best Hudson's Bay Store in Canada. It is popular with the locals and is very modern, despite originally being built last century. It is currently undergoing an expansion which will bring big names stores, and LRT station, and a sufficient transit station to the mall in Mid-2009.
Southpark Centre
Pretty typical suburban shopping with a great selection for stuff to quickly grab n' go. Prominent retailers: Future Shop, Toys R US, Chapters, Zellers, Canadian Tire, HomeSense.
South Edmonton Common
The biggest open air retail centre in Canada is this place. Mostly nothing particularly interesting to tourists, but some of you may like hitting up Wal Mart or IKEA even on holidays. It is very massive and has basically a lot of suburban outlets "under one roof" if you get it. It has the largest Walmart and Future Shop in Canada.
Whitemud & Calg. Trail
Some higher end retailers, as suburbs go along with a bunch of restaurant chains.