CPU : Athlon II X4 Propus - $90
Mobo : ASUS M4A87TD/USB3 - $100
RAM : 2 X 2 GB DDR3 1600 - $80 Kingston / G-Skill / Corsair / Transcend, whatever's available in your country
HDD : 250 / 320 / 500 GB SATA - $40 - $60 (3.5" int. 3 GB/s, 16 MB Cache)
Samsung Spinpoint / Seagate Barracuda / Western Digital Cavier Blue
DVD+-RW : 22X SATA, with Lightscribe support - $25 LG / Samsung / Sony
GPU :
Radeon HD 5770 $170 (make sure the specs match exactly - you can go with Gigabyte / MSI / Asus / XFX
PSU : 550 - 600 watts Seasonic / Antec / Corsair / OCZ / Coolermaster $70 (in order of preference)
Case : Any Mid Tower Case <$40 preferably with 3 X 120 mm fans (at least 2)
Monitor : 20", 1920 X 1080, 16:9, 50000:1, 300cd/m2, 5ms. (min specs). Ideally go with 150000:1, 2 ms if you can afford it. (TN panel only) Samsung, LG $150 / 160
Who needs to pay for software anyways? You're from Eurozone. Surely, Sweden (and certain swedish websites) can't be to far away