hi i have just built this computer and i am going to install windows xp pro my system specs: proseccer:amd athlon 64 x2 at 2.5 ghz case:nzxt apollo ram:2gb ddr2 gaming ocz platinum hdd:500gb sata 2 cd/dvd drive:16xdvd 48xcd graphics:saphire radeon 2600 xt 512mb ddr3 memory (x2 crossfire system) motherboard:GigeByte MA790X-DS4 (with 5.1 audio) plus a 600w power supply
I could buy those parts for about £350 new, so thats what it's worth in insurance terms. Second hand to sell, even if just built, then you could expect to take a 20-30% hit unless you were lucky with who you sold it to. P.S. that's not inc software, but the price of that would depend on if it was oem or retail and if original disk and cert was available