By now, the PS3's hardware isn't as impressive as it used to be. I should be able to easily and cost effectively build a PC with the same specs, right? I figure the only real difference would be the OS between the two. If that's the case, why can't I build a dual boot PC/PS3 and play PS3 games on a PC? I welcome everyone's input on this.
There is a significant architectural difference between PC and PS3, meaning it's not just a 'simple' software thing - the PC needs to run programs that emulate parts of the PS3's hardware which is very power-intensive.
It's quite complicated, but I'd suggest googling "PS3 emulation" and read up a bit to see how advanced PS3 emulation is, and what kind of spec you'd need. I'm guessing: you can't do it in a way that's easier, cheaper, better or simpler than just buying a PS3 and just plugging it in next to your PC.