Power supply: Blue Storm II 500W

Processor: AMD Phenom II X2 Black Edition 550 3100Mhz

Motherboard: Gigabyte GA-MA770-UD3 v2.0

Graphic card: ATI Radeon HD 4850

Screen: Acer AL1916W [19" LCD]

Creative inspire t6100 5.1 speakers

Sound card: Realtek ALC888 @ ATI SB750 High Definition Audio
Disk Drive: ST3200820AS ATA (200 GB, 7200 RPM, SATA-II)
DIMM1: Mushkin 1 GB DDR2-800 DDR2 SDRAM
DIMM2: Kingston 1 GB DDR2-667 DDR2 SDRAM
DIMM3: Nanya 512 MB DDR2-667 DDR2 SDRAM
Its an used computer but still works like new.
Could i get some serious offers ? Even on those seperate parts?