Having never actually been to Japan (yet, crosses fingers), what would people here that know these products recommend?

A local gourmet grocer is always good. I go to my local joint for imports. Their stock is better than any Asian grocer, and I know for damned sure that the stock is more fresh. (That's a story for another day!)
Now Amazon.com is getting into the game with a newly launched gourmet grocery. I checked out the Japanese offerings this morning and was quite pleased. Under the International section, there's a huge Japanese offering. I haven't been able to find any stumpers yet, meaning that all my faves are here. Many of the offerings are in multipacks or cases, but the price is reasonable, and if you have Amazon Prime, they're next to nothing on shipping. Very, very nice. Nice one, Amazon. Combined with other existing offerings, Amazon is now a one-stop shop for Japanese items.
Here's a list of my picks of some really great offerings on their site: