I was wondering if any computer gurus can help me upgrade my computer. I built this one a pretty long time ago, and won't be building another for a while. So I was thinking of just upgrading this one. Here's the specs. RAM = Patriot PDC2G3200ELK 2GB Kit DDR400 PC3200 256MB Geforce 7800GT AMD Athlon 64 3700+ Processor (San Diego) Socket 939 Retail MSI K8N Neo4 Platinum nForce4 Ultra Athlon 64 Skt939 DDR ATX Motherboard w/Audio, Gigabit LAN, RAID/Serial ATA Retail I'd be looking to upgrade the processor, RAM, and possibly the video card. My roommate might have a 512MB PCI-e ATI card he will give me. What does OT recommend?