I challenged myself to design an entry-level (but capable of playing any game out today, at some setting or another),
100% from-scratch (as in, assuming no component recycling at all, except for input/output devices, aka keyboard+mouse+monitor, and OS) gaming PC for
$250 flat (taking advantage of time-sensitive rebates and combo offers, note). I got pretty close, but a few things, like rising prices on DDR2 RAM, pushed it to just under $300, after rebates. If even just an HDD and/or optical drive could be recycled, though, the $250 figure becomes feasible again.
To be upfront, a few corners definitely had to be cut, in areas such as motherboard features, and if I could budget just ~$15 more each for the motherboard and CPU, it'd be a decent improvement, but I was pretty firmly set on the $250 figure. I wanted to show that cost doesn't have to be any more of a barrier to PC gaming, than console gaming. Put up three Benjamins, the cost of an Xbox 360 Elite, and anyone can have themselves a gaming rig. You won't be maxing out Crysis on this setup, but again, one way or another, this rig should be able to get any game on the market running totally playable, one way or another. Some clowns spend more than this on a CPU alone, but I prefer designing computers for people who actually have common sense, and who aren't blind to severely diminishing return curves.
Anyways, check it out. Sorry for linking this as an image (which isn't really an elegant way to do it), rather than the preferred method of a Newegg Wish List, but I couldn't find a way to add combo offers to a wishlist. This'll have to do for now. Comments and questions are welcome.
Parts links:
If anybody actually wants to build something based off of this (note that I'm not building anything like this for myself, at the moment; this was just an exercise), or would like to know what upgrades I'd make if the budget were a tad higher, please, feel free to talk to me in this thread.