Including shipping:
Win7 Pro Retail- $30
Samsung Spinpoint F3 1TB- $65
Cooler Master Hyper 212 Plus- $26
HP 1270i Retail- $30
HP vs17E (1280x1024, 8ms)- Free
AVC 80CFM PWM fan- Free
[NZXT M59
Antec Truepower New 550W]
Total $110
[Athlon II x4 635 + Asus Radeon HD4350
Ripjaws DDR31600 7-8-7
Gigabyte GA-790XTA-UD4]
Total $328
Total- About $590
I had a bunch of rebates too, roughly $100 worth, but I couldn't use them because I have no idea where I'll be living when they come back.
Still, I got some steals in that. If I bought all of that at regular price it would have been about $740, plus another ~$40 in shipping, not counting the OS. Win7 pro retail is usually $300...
Initially 3 years ago it was ~£600 not including peripherals, over those years I've spent about £250 a year on it on average, though most of that was this year what with rebuilding my system in February, having my hard drive fail and doing a graphics card upgrad
Though it would have costed more when I started, at this point I spent $360. At this point the estimate to finish my current build is roughly $1200. Might cost less if I can take advantage of Christmas sales, so i'm waiting till then to make my next purchase.