T-Man said:
Got a pocket pistol that won't print in my biker shorts? I want something with at least 16 rounds of .45 ACP.
So true, so true. Many people don't realize how personal sidearm selection is. There are so many factors to consider (price, caliber, size, capacity, barrel length, accuracy, comfort, usability, maintenance, simplicity - revolver or semi-auto, etc) that asking "What gun should I buy?" just lends itself to answers based on personal opinion and experience. While these opinions are valuable, they are not an answer to such a personal question.
A better option is to go to the store, lay out your requirements in order of priority. Look at, hold and manipulate many sidearms and see which ones you like the most. Attempt to conceal it, try to find holsters that are made for it, even try to rent one and shoot it. Then come here and ask about the few models you have narrowed your search down to - then the opinions and experience will mean something and may be a deciding factor for your purchase.
Don't buy a sidearm on someone else's opinion, you will most likely find that you would rather have something else down the road. Take a moment, do your research and try a few out - it will save you lots of money in the end and will likely result in a purchase you will be happy with for years to come.