Kmart and BigW are good if you have low budget, need no advice, and you understand already what is reasonable quality and what is not. BigW has a bit higher quality level and prices.
Local tackle shops are good when you have a good budget and have no idea about fishing, or require specialised tackle which is not available elsewhere. They can offer a lot advice which usually included in relatively high cost of fishing tackle.
Big chains stores have regularly good combo deals and sales. They can also offer a general advice if you finally find someone from fishing tackle dept. This is where I would be looking for beginner's tackle after learning some knowledge from this forum.
Keep in mind that the cheapest rod&reel in all 3 above mentioned groups will have similar low quality level, just the price 2x and 3x times difference - so, dont look for cheapest as a beginner.