Ok - first I took some TT posters' advice and went out on YouTube and learned a bit about making sushi. I put together a list of what I thought I needed and headed out to the Asian Grocery.
I went to the one on McCord and Dorr. When I went in the door, the lady behind the counter asked if she could help me. I said I was going to try to make sushi, and she says "so you need everything?"
I kind of laughed and said yeah, and she proceeded to run around the store handing me things - then gave me advice on everything I could think to ask.
I went home and had already decided I'd start with your basic california roll... My wife said they came out as good as any she's had from the restaurants around town