my first car was a 1986 Mercury Capri RS 5.0. it was the only car I owned before 25 that I NEVER crashed. regardless, just wondering why you want a 5.0 I mean .40 for your first? I woul absolutely recommend a 9mm, but I would even go as far to say get a .45 before going to .40. I shoot pistols every sngle week, and still cannot master any gun in .40. I was at the range last week and a guy next to me who just got a new glock in .40, he was shooting all over the place. I asked if this was his first gun, attempting to give him pointers. he said no, explained all the other guns he owns ad how well he can shoot them, but he just cant seem to shoot this .40 worth a darn. I felt his pain and we talked about what we didn't like about it.
the ammo costs more and it's a pain to shoot them well. that's it, just my opinion, you get what you want, but if your truly a beginner, I would just wonder why your want a .40. what about it makes you want it?