Finally some good news. I got my computer fully fixed and upgraded which means that O.K. Studio is now up and running again. Here's a list of the stuff I had to get.
New power supply
New motherboard (ASUS M2N32-SL Deluxe Wireless Edition)
AMD Athlon 64 X2 Dual Core Processor 4000+
New RAM (Patriot Viper DDR2 - 4 GB total)
New graphics card (NVIDIA GeForce 8800 GT Alpha Dog Edition 512 MB DDR3)
Total cost: about $600