The prices are always decent. A caveat is that you'll get no warrantee on this equipment. A good way to find out about ski swaps is through your local nordic club, a local high school or university team, local athletes, etc. Your choice of selection tends also to be cut significantly. During the season your going to pay the suggested retail or close to it for most equipment.
Packages combining poles, skis, boot and binding usually save a fair bit of money.
Even if the retailer doesn't have a sign up advertising packages, ask about them. If the boot isn't comfortable in the store, it won't be on the trails. Don't skimp on the quality of the ski boot and binding. They are the interface between you and your skis. Finally fit is as important for warmth as it is for comfort.