I don't know about rest of people here, but I jsut purchased a S&W M&P 45. It is reasonably price, has good ergonomics and is very accurate shooter. I have tested fire many of the guns in various calibers at the range, and even though these were used and dirty range rental guns, I was still very dead on with accuracy, even being a new shooter. The gun has a very nice feel and is well balanced in your hand. For the price, I think HK45 is wrong decision and I avoided that route. The S&W M&P 45 is very economical and popular gun. I really don't like Glocks, but I know they have a slim double frame out that may make them more ergonomic, haven't tried them yet.
If you want a good gun for the price, I think M&P 45 is way to go. Also, I hear Springfield 1911's are a good value for the money, but I decided not to go the 1911 route. I just like to avoid manual safetys on all guns I own. HK45s are nice looking guns, and one day if I am rich and money is no object, maybe I wil lget one. However, after reading more and more about Sig 220, I have come to the conclusion that it may be superior and better constructed gun and costs about the same as the HK45. Sig P220 is another good choice if you have more money to spend. I have shot Sig P220 at the range and as a new shooter it takes practice, because it has very low recoil. When you learn how to aim that thing and resist any jerking, its the most accurate gun I am yet to shoot compared with the polymers or Kimbers.
BTW, I just purchased a Sig P229 Elite and I can say its so beautiful and feels so nice in my hand. It is a compact gun with a 15 round capacity using Italian Mec Gar mags and has good weight to it, it probably has minimum recoil I would think. Haven't shot it yet, but next week I will.