and check for incompatibilities.. Thanks.
-Intel i3-540 processor – LGA 1156 socket -$110 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115221&cm_re=i3-_-19-115-221-_-Product
-GIGABYTE GA-H55M-S2V LGA 1156 Intel H55 Micro ATX Intel Motherboard – 2 X 240pin max 16gb no integrated graphics -$75 http://www.newegg.com/Product/Product.aspx?Item=N82E16813128457&cm_re=lga_1156_motherboard-_-13-128-457-_-Product
-Western Digital Caviar Blue WD3200AAKX 320GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive -$40 http://www.newegg.com/Product/Product.aspx?Item=N82E16822136770&cm_re=320gb_hard_drive-_-22-136-770-_-Product
-G.SKILL Value Series 4GB 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9S-4GBNT - $34
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231423&cm_re=4gb_ddr3-_-20-231-423-_-Product
-SONY Black 18X DVD-ROM 48X CD-ROM SATA DVD-ROM Drive Model DDU1681S-0B – OEM $17 http://www.newegg.com/Product/Product.aspx?Item=N82E16827118031&cm_re=dvd_drive_internal_sata-_-27-118-031-_-Product
-COOLER MASTER Centurion 5 CAC-T05-UW Black Aluminum Bezel , SECC Chassis ATX Mid Tower Computer Case - $50 http://www.newegg.com/Product/Product.aspx?Item=N82E16811119068&cm_re=mid_tower_case-_-11-119-068-_-Product
-PowerColor Go! Green AX5450 512MK3-SH Radeon HD 5450 (Cedar) 512MB 64-bit DDR3 PCI Express 2.1 x16 HDCP Ready Video Card - $40 http://www.newegg.com/Product/Product.aspx?Item=N82E16814131339&cm_re=hd_graphics_card-_-14-131-339-_-Product
APEX AL-D500EXP 500W ATX12V Power Supply - $45 http://www.newegg.com/Product/Product.aspx?Item=N82E16817154026&cm_re=500w_psu-_-17-154-026-_-Product
Total: $411.00
-Intel i3-540 processor – LGA 1156 socket -$110 http://www.newegg.com/Product/Product.aspx?Item=N82E16819115221&cm_re=i3-_-19-115-221-_-Product
-GIGABYTE GA-H55M-S2V LGA 1156 Intel H55 Micro ATX Intel Motherboard – 2 X 240pin max 16gb no integrated graphics -$75 http://www.newegg.com/Product/Product.aspx?Item=N82E16813128457&cm_re=lga_1156_motherboard-_-13-128-457-_-Product
-Western Digital Caviar Blue WD3200AAKX 320GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive -$40 http://www.newegg.com/Product/Product.aspx?Item=N82E16822136770&cm_re=320gb_hard_drive-_-22-136-770-_-Product
-G.SKILL Value Series 4GB 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9S-4GBNT - $34
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231423&cm_re=4gb_ddr3-_-20-231-423-_-Product
-SONY Black 18X DVD-ROM 48X CD-ROM SATA DVD-ROM Drive Model DDU1681S-0B – OEM $17 http://www.newegg.com/Product/Product.aspx?Item=N82E16827118031&cm_re=dvd_drive_internal_sata-_-27-118-031-_-Product
-COOLER MASTER Centurion 5 CAC-T05-UW Black Aluminum Bezel , SECC Chassis ATX Mid Tower Computer Case - $50 http://www.newegg.com/Product/Product.aspx?Item=N82E16811119068&cm_re=mid_tower_case-_-11-119-068-_-Product
-PowerColor Go! Green AX5450 512MK3-SH Radeon HD 5450 (Cedar) 512MB 64-bit DDR3 PCI Express 2.1 x16 HDCP Ready Video Card - $40 http://www.newegg.com/Product/Product.aspx?Item=N82E16814131339&cm_re=hd_graphics_card-_-14-131-339-_-Product
APEX AL-D500EXP 500W ATX12V Power Supply - $45 http://www.newegg.com/Product/Product.aspx?Item=N82E16817154026&cm_re=500w_psu-_-17-154-026-_-Product
Total: $411.00