Going with a few guys to napa

[TheEngineer]

I have the happy chance to go back to the Fairer coast and will have a full day in napa. One of the guys wants to go to eh Del dotto Winery for tasting (I've never been there)...and I was looking to see if there were any wineries that you would recommend other than...(sorry for the long note.....just trying to make sure that I've got my basis covered...I'm looking forward to this day off. (Ch Montelena, Twomey, Silver Rose, Story Book Mountain, Pride Mountain, Charbay, Terra Valentine, Keenan, Ceja, Freemark Abbey, Duckhorn, Markham, Flora Springs, Merryvale, Louis Martini, Heitz, V. Sattui, GrGrich Hills, Mondavi, Charles Krug, Peju, , Cakebread, Turnbull, Opus One, Cardinal, Domaine Chandon, Trefehen, Ladera, Viader, Phelps, Quintessa, Mumm NV, ZD, Miner, Chappellett, Shafer, STag's Leap, Astrale, Silver Oak, Groth, Chimney Rock, Rocca, Clos du Val, White Rock, Darioush, Andretti, Luna, Napa Valley wine co, ).

I was thinking about Schramsberg, Far Niente, Rubicon, Signorello.... Is this a good list or is there others that are must sees?

I'm on my way first thing tomorrow. Many thanks in advance.