I followed sushi directions from various recipes that I found online. This site's a good one, http://makemysushi.com. Generally for the sushi, you'll need sushi rice, sushi rice vinegar, and nori.
If you've never tried making an inside out roll, it's not as challenging as it looks. http://norecipes.com/blog/caterpillar-roll-recipe/#sthash.sQ2hkGTI.dpbs. I used this recipe as a rough guide. Read through the directions first, and follow them carefully. You'll be pleasantly surprised with the results!
The rolls are easier to cut if the knife is wet.