Shop around and take your time. Find what fits your hand the best and has the best feel. That is the most important thing. My Dad has a M&Pc and it is a great little pistol. Also, a lot of people on here are willing to let you try their guns, if they have something you are looking at .
No matter what you what to get or end up getting (money wise) make sure there are plenty of options out there for holsters. A good carry gun is worthless without a superb holster matched to it.
Is there a certain band or make that you could suggest for a holster?