[glc]

For this use, you could even do a mini-ITX build.

Newegg.com - SilverStone Sugo SG05-B Black SECC / Plastic Mini-ITX Desktop Computer Case SFX 300W 80Plus Power Supply

Newegg.com - ASUS P8H61-I (REV 3.0) LGA 1155 Intel H61 HDMI USB 3.0 Mini ITX Intel Motherboard

Newegg.com - Intel Pentium G630T Sandy Bridge 2.3GHz LGA 1155 35W Dual-Core Desktop Processor Intel HD Graphics BX80623G630T

Newegg.com - Crucial 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model CT2KIT25664BA1339

Newegg.com - SAMSUNG 8X Slim Internal DVD Burner, OEM Package Without Software 8X DVD+R 8X DVD+RW 8X DVD+R DL 8X DVD-R 6X DVD-RW 8X DVD-ROM 24X CD-R 4X CD-RW 24X CD-ROM Black SATA Model SN-208BB - CD / DVD Burners

Newegg.com - Western Digital Scorpio Blue WD1600BPVT 160GB 5400 RPM 8MB Cache 2.5" SATA 3.0Gb/s Internal Notebook Hard Drive -Bare Drive