[JorgeHGPR]

I'll go with AMD, see if this build is good.

Newegg.com - Xigmatek MIDGARD-W Black 0.7mm SECC ATX Mid Tower Computer Case - Computer Cases

Newegg.com - AMD Phenom II X4 945 Deneb 3.0GHz 4 x 512KB L2 Cache 6MB L3 Cache Socket AM3 95W Quad-Core Processor - Processors - Desktops

Newegg.com - GIGABYTE GA-MA790FXT-UD5P AM3 DDR3 AMD 790FX ATX AMD Motherboard - AMD Motherboards

Newegg.com - SAPPHIRE 100277L Radeon HD 4770 512MB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Desktop Graphics / Video Cards

Newegg.com - G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model F3-10666CL8D-4GBHK - Desktop Memory

Newegg.com - XIGMATEK MC NRP-MC651 650W ATX12V Ver.2.2 / EPS12V Ver. 2.92 SLI Ready CrossFire Ready 80 PLUS Certified Modular Active PFC Power Supply - Power Supplies

Newegg.com - Western Digital Caviar Black WD5001AALS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive - Internal Hard Drives

Newegg.com - LG Black 22X (CAV) DVD+R 8X DVD+RW 16X DVD+R DL 22X (CAV) DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache SATA 22X DVD±R DVD Burner with LightScribe LightScribe Support - C

Is this better?

[kmote]

What's the intended use and budget?

Not sure I would go for a Xigmatek PSU, stick to the known good ones (corsair, seasonic, PC P&C, most OCZ, most antec, enermax etc).

Motherboard looks really expensive but gigabyte is a good brand.

The 4850 is more powerful and cheaper.

[Hefemeister]

DDR3 is a waste of money on a PII system. I would go with a system running ddr2 and use the money saved to upgrade your gpu and psu.