Need a little help, please?

[plutomaniac]

Don't worry, Chrome has an auto-translation thingy. Anyway, at the left you can select Socket and for AM3 the only CPU is this one:

AMD Phenom II X4 965 Black Edition 3.40GHz

That would be a great upgrade for you, it's a strong cpu for what you want. After converting the price I saw that it costs 84€ or 115$ which is a good price. This is a strong quad-core cpu and a black edition as well which means that if you want you can even overclock it in the future.