I keep seeing the nectar and wine cabinets. Can we have them in our own houses. Like for a wine cellar?

Yup. In fact if your sims drink or make nectar, you definitely want them. Nectar, whether found or homemade, ages better (gradually attains a higher quality) in a rack, ages better in the more expensive rack than the cheap one, and also ages better in a cellar. For the best quality nectar, you want the high-quality racks placed in a cellar. (There's some indication that it was even supposed to matter how DEEP the cellar is... but a couple folks who tested it found no difference between storing your nectar in the first cellar level and storing it deeper.)

Where can we buy the cabinets? I know we can probably get em with buydebug, but where else?

Under "Storage", IIRC (with bookcases).

You cannot buy the cabinets normally without the buydebug cheat, except from the Nectary in France.

Cabinets = something other than the two nectar racks? I've never used the buydebug cheat, and the nectar racks are in my buy mode under Storage>Miscellaneous (along with the stone alcove). I'm running version 2.2.8, if that makes a difference.

Yup. Pescado's wrong. Hallelujah!

I found them now! I didn't even think about looking in the "Storage"! Thanks!

I thought the OP meant the nectar racks and pescado meant that fridgey thing behind the counter in the nectary.