No. Do not load up on deodorant -for Pete's sake, this is Taiwan, do not buy into the ol tales. Yes, 20 years ago deodorant options were dismal, now, unless you live in the hills of Central Mountain range, you're covered -and even so, there is a great postal system so you can buy your salary off on the Internet on whatever your heart desires.
Same with steaks. Yes, they can be expensive. Yes, most would not pass the test in our countrie sof origin. This is a Buddist mayority place, people do not like to eat their companion worker, ie the cow/water buffalo, and some feel the same way about it as you feel about eating dog/cat. However, as said, you can buy some resemblance of beef at any supemarket/wet market or just go to Costco or any other big hypermarket. If not, your choices for steak dinner range from 150 ntd to 700 ntd to 1500 ntd no 10000 ntd. Choose as per your capacity/hunger.
Cheese is either 150 to 300 ntd for 400 grams at any supermarket -quality varies, we have from France, Holland, Germany, Japan, etc or two kilos for 300 ntd at Costco -from US. Again, if you have the money, go ahead and buy imported gorgonzola. Parmesan is quite reasonable at Costco.
Food I recommend stick to organic, we have many stores. This is especially recommended with milk. Wet markets offer a smorgasboard of fruits and veggies. 100 ntd will fill a bag.
Taiwanese are very fond of Japanese brands and stuff. There are many Japanese pharmacies and food stuff places catering to this market. Awesome hair and makeup products, cleaning stuff, reasonable prices.
What to bring? Medication you are on or prefer, like Pepto Bismol or cold medicine, for the early months without National Helath Insurance. Condoms in proper sizes, yes. Shoes in your size if you are extra large person. Same with clothes. Everything else is found here.