What to consider when learning to make sushi at home?

There are a few tools you should have that are out of the ordinary in a typical American kitchen:

• Sushi rolling mat - It's really the only way to make maki (rolls). Pro tip: when you use it, put it inside of a large zip-loc bag. This helps prevent the rice sticking to the mat.

• Wooden sushi bowl - This is essential in helping the rice turn out properly. The one I linked includes a free mat. I don't own this particular brand; I bought mine from an asian grocery store near me for like $30, it came with a paddle. If you don't want to commit to this large uni-tasker then I recommend using an equally large shallow-ish plastic bowl/dish. The sushi chef that taught me said plastic was OK, but to avoid glass or metal.

• Quality rice cooker - A quality rice cooker makes life amazingly easier. I own the one linked and it is amazing. I use it for cooking all of my rice. The quality of Zojirushi is simply unsurpassed and it quickly pays for itself.

The single most important thing is a very sharp knife. It makes cutting the maki SO much easier. I can't stress this enough. A chef's knife is just fine, but it should be well cared for and very sharp.

For beginners nigiri-zushi is by far the easiest to make. You simply shape a small amount of rice in the palm of your hand and slap a piece of fish or other seafood on top of it. Cutting the fish for nigiri is an artform and cannot be adequately conveyed here, but if you just hack out a thin piece of the right size it will taste fine. Tuna and salmon are relatively cheap cuts to use for this.

For maki I suggest starting with spicy tuna rolls and California rolls. All you need for a California roll is: avocado, cucumber, and imitation crab meat. For spicy tuna mix you need: tuna, kewpie mayo, and shichimi togaroshi (or nanami togaroshi).

You may also want some tobiko and/or masago roe for the outside of your rolls.

One thing that will be very important, is a good supply of fresh fish. and this can be quite difficult. In St Louis, try Bob's Seafood located 170 and Olive. They supply a number of restaurants in the area.

By the way, I'm not affiliated with Bob's! They're just good.

Yes. If you want to make maki (rolls), you will need a sushi mat--thin pieces of bamboo bound with string.

You will need a rice cooker or a lot of patience for making the sushi rice properly.

You will need razorblades for knives. Seriously, Japanese chefs keep their knives even sharper than I do, and I can actually shave hair off my arm with mine.

In addition to the answers here

I find that getting the rice seasoning right is actually the hardest part and it can make all the difference between good and great sushi

Also using good Japanese soy is a must (it is quite expensive though)

Any Japanese sushi snob places a GREAT (I have only recently come to understand the importance of this) deal of importance placed on the rice - the quality, flavor and consistency must be top notch.

You could use the best fish imaginable, but if it's on crummy sushi rice, it's not good sushi. At least to a true Japanese sushi elitist... (like my mom).