As for the skittishness, yes, it's only been two months. I'm sure as she begins to completely understand that you're not going to hurt her she will get better about that, but might never lose it all together. I've had Peanut for almost 15 years now and she was never abused and she is still skittish on a regular basis. Hopefully that won't be the case with Dallas though.

And as for getting another kitty - yeah! Go for it and be sure and provide us with pics if possible. I agree that the sooner the better. If you've only had her for two months, she might not have forgotten being around other cats and the introductions should go a little smoother. The debate about male or female is still that - a debate, but I've got one of each and I just find it interesting the difference between the two genders.

Good luck and please keep us updated on the new kitty progress.