Need opinion on the specks for a new machine

Need opinion on the specks for a new machine

I am building a good machine and need some serious ram and enough video ports. I am building this to be compatible with both windows and linux. I am planning on running lots of virtual servers in. I have choosen the following hardware. I don't know if the heat sink that comes with the cpu will be enough or should I go for a new more power heatsink. I am sure the case will require some fans.

Thanks in advance for the opinions,

Moterboard: ASUS P5N32-E SLI LGA 775 NVIDIA nForce 680i SLI ATX Intel Motherboard - Retail

CPU: Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Processor Model BX80562Q6600 - Retail

Video: (2 qty) ASUS EN8600GT SILENT/HTDP/256M GeForce 8600GT 256MB 128-bit GDDR3 PCI Express x16 HDCP Ready SLI ASUS Black SATA DVD-ROM Drive Model DVD-E616A3T - Retail

CD Burner: ASUS 18X DVD±R DVD Burner with LightScribe and 14X DVD-RAM Write Black SATA Model DRW-1814BLT - OEM

DVD ROM: ASUS Black SATA DVD-ROM Drive Model DVD-E616A3T - Retail

Floppy: NEC Black 1.44MB 3.5" Internal Floppy Drive - OEM

Hard Disk: Western Digital Caviar RE2 WD5000ABYS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM

RAM: A-DATA 4GB(4 x 8GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model ADQVE1B16K - Retail

Case: Linkworld 431-06 C.2222 Black SECC/SGCC ATX Mid Tower Computer Case 500W Power Supply - Retail with 500 watt power supply