Yes, playing with puzzles can be fun! Of course it is better if there is someone to help you out a bit. Just so that you use standoffs properly when mounting the motherboard or something like that... Both builts have gor weeknesses: I believe that GT610 in jaraldo's build to be actually weaker than the AMD in yours... but he has got a better CPU.
Both PCs actually miss at least 30-40$ of graphics power to qualify as gaming builts. The Geforce 630 is minimum to play anything I believe, and I wouldn't go below AMDs 7770 either... especially for full HD!