Best CPU for my motherboard?

Solution
The motherboard has LGA775 cpu socket, so the best processor for it would be Intel Core 2 Duo/Quad. Pretty obsolete, I suggest you get a new computer.
Hi. Thanks for the answers but I have found a much better lga775 motherboard I will use. This build is actually for my younger brother to play Minecraft so it doesn't need to be amazing. But it got a motherboard that has support for good Intel quad cores so I'll stick with it. Thanks :)