A new CCW permit and wants a .45...
I take it you have been carrying the Beretta PX4 9mm on your new CCW permit. That will certainly work, although the PX4 is a full size gun, based on my recent handling of one in the gun store. Given your desire for a .45, maybe you should think about something in that caliber that is small enough to be easily concealable.
Eventually you will probably want a 1911, as most of us do, and this type of gun with a barrel length of about 4 inches and aluminum frame is very concealable, given its very slim profile and weight of about 27 ounces. This could satisfy your .45 cravings for awhile. The Kimber Pro Carry or Springfield lightweight Champion are both good alternatives that would just about fit in your stated budget. One of my favorite carry setups is this Kimber CDP Pro in a horsehide holster: