I believe this topic has been discussed a gazillion times before, right here in this forum. Use the search button, but as I've posted in a few of those topics myself, with the current hardware specs its much better if you go in for the PS2 console. ePSXe might provide you emulation for the PSX games, but the current generation of PC hardware lacks the meat required for the PS2 game emulation, not to mention there is'nt a decent PS2 emulator out there.