i know this doesn't help you now, but when i moved here i planned ahead and bought several transformers of various sizes and shipped them with my moving container to be able to use everything i had that didn't work on 220v. i just didn't want to go through the trouble of selling things and buying new things here.
really, all you need to enable that to work is a transformer plugged into a strategic area and some power strips that work on 220v/110v (yours from the US surely won't and will pop the breaker as soon as you plug them in). i have transformers set up in each room (mainly for my TVs, which work fine) but the power strip can give you a little flexibility plugging stuff in if you need it. just calculate the wattage you need and give yourself plenty of extra as a contingency (if you need 400w in one room, buy an 800w or 1000w).
i have one large one (3000w) in the kitchen i use for my coffee maker, blender, and toaster oven. i just leave it on the counter and plug stuff into it as i need it. it really isn't that big a hassle.
if/when i need to replace appliances i'll buy them here so i can reduce the dependency on the transformers. but if you want to use what you have it shouldn't be too hard to do it that way.