from a shop, pre built say for example Currys, how much would you expect it to cost roughly? Gigabyte GA-M68MT-S2 (AM3) Motherboard - Retail AMD Athlon II X3 Tri Core 450 3.20GHz (Socket AM3) - Retail Tsunami Gaming Case - Black Corsair Value Select 4GB (2x2GB) DDR2 PC2-5300C4 667MHz Dual Channel Kit HIS ATI Radeon HD 5570 1024MB GDDR3 SILENT PCI-Express Graphics Card (H557HO1G) OCUK Swift 750W Silent Power Supply OcUK Value 80GB IDE ATA-100 8MB Cache Hard Drive - (OEM) MD0800BJBW Sony DVD-ROM 18X SATA DDU1681S-0B (Black) - OEM
Yes a rather high profit margin, and the parts probably wouldn't be as great compared to building it your self.