Coming from one of the bigger 1911 fans on this site, I say find yourself a G19. Only because the price and availability of ammo and it would be a great platform to get down the fundamentals.
Now if you REALLY just have to have a .45 you really can't beat the 1911. Colt series 70 or XSE would do nicely. I pretty much second everything BigRed82 said.
Now if you REALLY just have to have a .45 you really can't beat the 1911. Colt series 70 or XSE would do nicely. I pretty much second everything BigRed82 said.