i have a s&w 908 9mm, it was my first gun and i've had it for a little while now and i want something bigger. i was thinking about trading it in. the local gun store has a ruger .45 semi auto there, but i dont know much about rugers or if they are any good. im not sure the model its all black with a composite frame. its selling for 530 dollars brand new, anyone have experience with a ruger .45?