Heck, you know more as an east coaster than a lot of locals here do. ;-)
If you like really stellar reds, you've gotta check out Geyser Peak (in fact, we dropped our wine club membership with Rodney Strong about a year ago to justify joining up at Geyser Peak--their wines are non pareil). Geyser Peak does a zin from Contra Costa County (from their block collection, the Sandy Lane Vineyard) that's one of the best zins I've ever had the pleasure of drinking. Geyser Peak's reds are outstanding across the board, but that zin is really a knockout. We've got a new club shipment ready to pick up this weekend, so I'm hoping there's a bottle of zin in it (we're about due). And we'll grab a couple of bottles of that tawny port while we're there--yum.
Another lesser-known but REALLY good zin is from the Mariah label. It's owned by wine behemoth Fetzer (who, believe it or not, produces some of the best small production wines you'll ever find; they're just not very readily available). They'll run you around $30 a bottle, but they've got a lineup of 4 zins (all the same price), and all are fantastic (Poor Ranch, Mendocino Ridge, Ink Grade (Napa), and Alexander Valley). All four are great.
We've got a couple of newer vintage Rodney Strong cabs waiting patiently in our collection right now--and VERY much looking forward to opening them up in a few more years.:9
edited to add pics & info:

And here's a review of the Mendocino Ridge zin:
http://www.liquorama.net/browseproducts/Mariah-Mendocino-Ridge-Zinfandel-2000----Rated-90.HTMLFun trivia: The newly approved Mendocino Ridge appellation is the only AVA designated by elevation (rather than geographical boundary).
And here's the Geyser Peak zin:
http://www.geyserpeakwinery.com/ourwines/awardsandaccolades_result.aspx?wine=108