Been slowly upgrading a "Hp Pavilion Elite m9500" and more or less swapped out the last part a few months ago. All that's left is the wireless card and a 700gb hdd. My 2 Year old graphics card just burnt out while playing RAGE though so currently shopping for a new one. Besides that it's done great so far. The actual assembly was far easier than I thought it would be and now that this is done I'm kinda interested on starting other builds. I originally got the Desktop ~Summer of... 2009 and didn't change my first part until sometime in 2011.
Lastly CPU was bundled with Mobo... wasn't sure how to show that so I set the cpu as $0 and the Mobo as the total of the bundle