Interesting walls on those beds! Fiberglas or corrugated metal?
You really did jump in with both feet, if you've been gardening fewer than 5 years!
If the big closet-sized thing is your whole greenhouse, I think you might want that cold frame for small plants plus another tall hoop house for big plants, sooner rather than later.
Really, look at the "Greenhouse" forum to see how many people finally got their very first greenhouse, and sized it "to meet their needs" - until they used it for one year, then wanted one 3-5 times bigger. And those who got them, filled them!
P.S. I forgot to invite you to join the PNW forum. We try to cover the western PNW as well as coastal. It isn't always very active, but we're nice people.
http://garden.org/forums/view/...
This forum: "Pacific Coast Gardening forum"
http://garden.org/forums/view/...
used to be mostly California. I see their new blurb is:
"Coastal Oregon, Washington, and California, although members from Alaska, Hawaii, Mexico, and the Pacific Asian countries (and anywhere else) are also welcome."