976. is a pretty good rate which includes air from Cali to Fl.
I agree with Blue and say you should check into the Mariner. I've looked into Mariner for myself for the summer and the rates are around $999. pp
What month are you looking to cruise?
I was on the Enchantment in November 08 and had a wonderful cruise.
Being this is your first cruise I'm sure you and your GF will enjoy it no matter which ship you choose.