I am getting a new pentium 3 800MHZ processor and dont know if i need a 300wts power supply. I have Leadtek geforce 2 mx 400, SBlaster X-Gamer 5.1, Ethernet card, samsung 20GB HDD 1 DVD ROM and 1 CD WRITER.
Running windows ME

P.S. motherboard is GIGABYTE 6VTX