Doug, I hope you get out this winter, in many ways it is my favorite season. In all other seasons I sweat like crazy when hiking uphill, but in the winter I can usually control that with layering. I often ski most of the day with just a thin long sleeve Smartwool shirt and a light Gortex type top if there is any wind or snow.
We skiers call snowshoes SLOWshoes because skis go so much smoother up, and of course are a ton of fun on the down. Slowshoes are better for tight steep trails through brush or tight trees, and don't require much technique. If the trails near you are that type go with them - don't forget good ski poles (with appropriate baskets - not trekking poles).
If you have decent balance and coordination X-skiing is relatively easy to get into. You won't be kicking and gliding for a while, and icy conditions are a no-no. If you are on prepared tracks start on green, and if that feels easy you will graduate to blue runs this season as long as you stay in the tracks that guide your skis.
Gear is very important, but good stuff will last many years (I was on my last set 20+). You will want to go with "fish scales", not wax, any good ski shop will steer you that way in CA. Make sure to keep them waxed with glide wax as you use them to help avoid the dreaded icing if you are breaking trail in variable temp. snow. Wider skis are easier to balance on, and work better in soft snow if you head off prepared trails. Metal edges (or partial) are very nice when it gets icier, which isn't uncommon in CA. The beefier the boots the better, esp. for beginners. Debbie and I have boots with external plastic heel cups/straps now - more expensive, a bit heavier/slower, but really help with control. Cheap rental gear puts many people off the sport when they can't control the skis on the downhill.
Have fun in the winter wonderland!