I wouldn't follow any guide to the letter but these are very solid recommendations.
» Case recommendations are odd as design preference is mostly up to the individual. The Tsunami doesn't look to have anything worth writing home about and, in my opinion, looks like ***. The build quality on my old Thermaltake Shark was pretty good (though the door felt a bit flimsy...), if it's worth anything to you.
» If you're not ordering your parts tomorrow look for reviews of the Seagate 640GB HD when they start to touch ground. It looks "promising" but I don't honestly expect it to outrun the WD.
» The Wiki may have chosen the DFI Blood Iron for a reason (overclocking is likely, possibly reliability) but if you want a cheap no frills board the P35-DS3L is good. It's been replaced by the EP35-DS3L, which I haven't looked into, but I imagine its similar enough.
» GPU purchase decision making should be made mostly around two factors: what games you play and what resolution you wish to play them at. A 4850 should be adequate for most though. You might feel inclined to scale up to the 4870 if you want to play at max resolution on a 22~24" screen on more modern games.
Like I said, these are very solid recommendations but the best advice is to shop around and find you need... at the absolute cheapest! :)
http://www.Newegg.com/
http://directron.com/
http://www.mwave.com/mwave/index.hmx?
http://microcenter.com/index.html
Anandtech.com is also a informative review site with a nice forum.
Edit: The Operating System: XP and Vista come in three package types, Retail, OEM, and Upgrade. » Upgrade (99.99 and 122.99), as its name would imply requires a previous version be installed, unless you're the unscrupulous type.
» Retail ($194.99 and $212.99, respectively) is the full package have no prereqs, it can be installed on a single computer as many times as you want.
» OEM packages are specifically for system builders, having no official Microsoft support, and the license is tied to the motherboard its installed to, but that cuts the price in half ($84.99 and $99.99, respectively). Most people consider the OEM packages the best value. Shop around, I bought Vista HP 64-bit OEM for $79.99 back in January, so you can probably find it around that price if you look.
Something funny I found getting prices on Newegg for this edit. 3/19/2008, so I'm not sure about the SP1 part, but the latter is... o.O. lolfud
Quote:
SP1 still isn't out 32bit Doesn't support 4 gigs of ram(only 3.25) 64bit doesn't support internet, sound or video cards...
Doesn't support internet, sound, or video cards? Come'on! XD
Edited formatting Edited, Aug 25th 2008 11:50pm by RhondaTheSly