I'm assembling a new PC primarily for gaming. Below are the specs: Motherboard: EVGA A1 X58 3-Way SLI Core i7 Motherboard Processor: Intel Core i7 920 2.66GHz RAM: Corsair Dominaor 3x2GB Tri Channel 1600Mhz (8-8-8-24) Video Card: Either 2 x HD 5850s in X-fire, or single HD 5870 Hard Drive : Western Digital Caviar Black 1TB 32MB cache 7200RPM Chassis: Antec Twelve Hundred PSU: Corsair CMPSU-850TX 850-Watt TX Series Procy Cooling: Corsair Cooling Hydro Series H50 Liquid cooling Question regarding Hard drive: Apart from the hard drive I mentioned above, i want to get an additional hard drive (for OS + games). Which of the ones below is my best option? (a) Kingston 64Gb SSD (b) WD Raptor 10,000RPM 150GB (c) Another Western Digital Caviar Black 1TB 32MB cache 7200RPM and RAID 0 using a hardware RAID controller Question regarding sound card: My motherboard supports 7.1 channels, co-axial and ToSLINK. The soundcard I have in mind is the Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series Sound Card. Now, the thing is, I'm assuming the difference in sound quality from my (high end) motherboard and this sound card will be almost negligible to my ear (correct me if I'm wrong). So, the only incentive to get the sound card is to off-load the burden of sound processing from my procy to the sound card when playing games. Is this required considering the procy I'm taking (i7 920)? PS - Fell free to leave any other comments regarding the build.