I just read an article recently about disney and www,disneyland,com . Disneyland is a lot different than when I went as a kid. I remember the Matahorn and the Teacups. Now there is the whole California Adventure deal. I want to go back to disneyland but I want to go at a good time.
Some info: the ticket booth at the entrance is for both parks, however the normal ticket purchase is for one park or the other....I think you can have access to both but have to pay more....Inside California Adventure is a ride 'California Dreaming' (it's GREAT !)....also the most popular, so you may want to go there first or stop by it and get a 'return time' when you can get in....I've never understood why the Disney parks don't give you a break on food prices....with the money they rake in they sure could....oh well.......don't need to buy goodies in the park because on the way out you must walk through a corridor of Disney shops
Good Luck and Have Fun !! ....not sure what time of year would be best.... if you have little ones, the 'Characters Breakfast' is a neat deal....they will visit your table and stay for as many pictures as you like
I would say either spring or fall, as the off-season allows you to enjoy the park with smaller crowds and wait times.