I have have Honda Accord 2000 with manual 5 gear transmission. During acceleration it shakes like front end is ready to jump out. Engine doesn't misfire or anything - I have plenty of power on all RPMs and no hesitation - car just goes! However under acceleration it shakes horribly. Also I noticed that if I accelerate gently - lets say shift very early so that wheels don have much power provided to them, then car shakes less, but the moment I downshift and "put pedal to the metal" it shakes really badly.
Can someone tell me what is going on? What would be an easy way to test (so I can do it) and what what should be changed/fix from cheaper to more expensive stuff?