Thanks for all the help. By the time I got home from work I only had time last night to call one other vet in the area (they were open later hours), which told me they charge about $400 ($100 less).
Nate, thanks for all the information, it is very helpful. Selena is going in Saturday morning for her pre-surgery bloodwork. I was also told that she'll be receiving the IV fluids, anesthesia (not sure what kind, I will be sure to ask on Saturday), post surgery medications, and optional overnight stay the day of surgery. The actual time she is in surgery I definitely will find out, because as you said, I do not want to have her under anesthesia for a prolonged amount of time. But, it seems that this vet is taking all the necessary precautions to ensure a high quality surgery -- that and my location most likely reflects the high price. However I will be making sure all items you indicated will be present when I speak with him on Saturday, otherwise I will be looking elsewhere.
Since she is getting it done at 9:30am I think she should be okay coming home that evening? The day after the surgery my boyfriend is going to go into work late and I am going to come home early so that she will only be alone for 3 hours. Do you think this is too long to be home alone? Maybe I'll have my boyfriend bring her to the neighbor's house while we're gone those 3 hours, just to have a set of eyes on her.
Thanks again everyone for all your insight. I'll let ya'll know how it goes!
~Holly