And I believe your price of $1199 is the suggested retail price of Kit 1 price for 550D (this price is normally found in megastores and IT shows), the free tripod are given by Canon and not any other shops. When you buy your camera from (say, John 3:16) and lets say the price they quote is $1060, you can still take the receipt John gave you and go down to habourfront Canon's redemption center (keppel tower 2, I think) and redempt your free tripod.
I have to emphasis, the free gifts are not given by shops... but by Canon. The bag will normally be handed over to you immediately after purchase of the product. The bag is usually a black one with the word, "EOS Digital" on it (so it is not sold in any shops but as gifts from Canon).
I don't think anyone will give you a dry cabinet, they might give you a dry box, but never a dry cabinet. Note that dry box and dry cabinet are very different thing. For dry box, you have to use silica gel, for dry cabinet - it is powered by electricity.