Kevin,
As another native Californian and a gun owner, I'd also recommend AGAINST moving here.
But if you must, there there are a few things to be aware of:
Handguns must be registered here. When you bring your handguns with you into the state (minus all +10 round magazines, of course) you must send a registration card and pay a fee to register each handgun. On the plus side, you can bring in just about any handgun whether it's on the California Approved list or not, unless it is classfied as an 'assault pistol'. Any handgun with a removable magazine mounted forward of the trigger falls into this category.
List of Handguns Approved for Sale in California
If your non-assaulty-handguns are not on the CA-approved list, you may find yourself in the enviable position of Californians paying exhorbitant prices to you for your non-approved handguns, as face-to-face Private Party Transfers are just about the ONLY way for Californians to legally obtain a non-CA-approved handgun. I'm NOT suggesting you load yourself up with KelTec P11s and P32 to bring into California to sell, because you could get in trouble for importing firearms for resale.
There is no registration requirement for long guns (yet
), but you may not bring with you any "assault weapons" as defined by California. No ARs, no AKs, no detachable-mag FALs... Basically anything with a detachable mag and a pistol grip. Also, you cannot bring in any .50 BMG rifles.
Oh and no flash hiders or sound suppressors are allowed. And no night-vision scopes allowed either. Also no Class III firearms allowed. Or any Short Barreled Rifles. No "Any Other Weapons". Automatic knives also not allowed. Nor are 'push daggers', nunchakus, throwing stars/shuriken, and blowguns. I'm definitely forgetting more.
I think we can still own pointy sticks
If you love shooting, you'll be disappointed to hear that at least in the Los Angeles area, shooting ranges have been closing down or are fighting attempts to close them down. Most ranges have restrictions against "rapid fire"... which means more than one shot per second
Steel-core or even steel-jacketed ammunition is generally not allowed at firing ranges due to fire hazard (outdoor ranges) or damaging to backstops (indoor ranges). Tracer ammunition is illegal.
If you're still hell-bent on moving here, then we California gun owners would welcome you if you'd join us in the fight to restore our 2nd amendment rights. Browse the boards for California CCW and Calguns.net for more.
California CCW forums
Calguns.net forums