Here is what I have in mind.
Motherboard: ASUS "A7N8X-E Deluxe" nForce2 Ultra 400 Chipset Motherboard for AMD Socket A CPU -RETAIL
Processor: AMD Athlon XP 3200+ "Barton", 400MHz FSB, 512K Cache Processor - Retail
Sound: Creative Labs Sound Blaster Audigy2 ZS PCI Sound Card, Model "SB0350" -RETAIL
Video: ATI RADEON 9800XT Video Card, 256MB DDR, 256-bit, DVI/TV-Out, 8X AGP -RETAIL
Ram: 2x OCZ Enhanced Latency Series 184 Pin 512MB PC-3200 Platinum Edition Retail
Hard Drive: 2x Western Digital Raptor 74GB 10,000RPM SATA Hard Drive, Model WD740GD, OEM Drive Only
DVD R/RW: NEC 8X Dual Layer DVD+/-RW Drive, Model ND-2510A SW BGE, OEM
Floppy Drive: SONY Beige 1.44MB 3.5Inch Floppy Disk Drive, Model MPF920, OEM
Cooling Fan: Thermaltake Volcano 11+ Xaser Edition, Opti-fin technology, made of All Copper
Cooling Grease: Arctic Silver Premium Silver Polysynthetic Silver Thermal Compound, Model "Arctic Silver 5", 3.5-gram( 1 cc. ) tube
Case: Thermaltake Silver XASER III LanFire ATX MID Tower Chassis with 420W power Supply, Model "VM2420AU" -RETAIL
Total Cost = $1445
Now the question is about the hard drive setup. I was thinking something along the line of those two 74GB Raptors in Raid 0. But I have never messed with raid of any type and was wondering what the pros and cons would be for this setup. The computer will be a gaming/multimedia computer.