tk2910 :
If your serious about gaming .. you need at least another grand.......I'm am building my gamer and at the moment my budget is $3600.00...... 12 months ago even less by 2 or 3 months the quote was $4,500 for my hardware.......but I know this system will do me for at least 2 years...my case is a thermaltake liquid cooling system and has 6 fans placed in the case for maximum cooling
Certainly, one *can* spend several thousand dollars for a gaming PC.
But it's not necessary. A $1K build can provide plenty of entertainment,
especially given the performance of the i5-2500K.
To the OP -- currently ~$45 at Amazon for an Antec 300 case.
One can spend more money here, but I don't think you get a better gaming experience.
I use an Antec Sonata, & built my son's gaming PC using a Solo.
Plenty good enough.
One does not need 800 flippin' watts.
~$90-100 for a ~650w power supply (PC P&C / Seasonic) is, IMHO, plenty.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703026
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151095
(FYI, I run my Phenom X6 (a 125w CPU), 8GB RAM, two hard drives
and Delta44 sound card on a 430w Antec Earthwatts PSU.
Admittedly, I'm using the on-board graphics, but I do have the headroom to add one
(but not two) video cards. A 550w PSU would provide that headroom.
And the i5 is more efficient than my X6 Phenom.)
A GTX560 card for under $200.
[Yes, one can get faster if one *insists* on spending the $$.]
And, like Wolf, I would STRONGLY counsel against an Open Box motherboard.
An adequate board can be had for ~$150.
Personally, and I'd get a Samsung Spinpoint or a WD Caviar drive over the Seagate --
pick a price range (say, $75-100), sort by rating, pick three depending on storage needs,
compare the read & write speeds, and perform the due-diligence Tom's / Anand / XBitLabs /
SPCR reading. [Left as an exercise for your friend - presumably he should
read up on what he's spending his money for.]
I'd imagine that there are plenty of how-to-build videos on YouTube ... but if your friend's
all thumbs, paying someone local $50-$100 to build the thing may be worthwhile,
if there's a reputable bricks & mortar shop nearby.