Best WebCam Under £30

Whats a good WebCam under or equivilent to £30

you and me both have the same problem. ive been looking at 

Creative Live! Cam Chat HD 720P, 5.7MP Webcam

i have this one, and i can tell u it's quite sharp when you arent moving much, but as soon as you start moving, as in stand up or move your arm, it'll all go blurry. Though i have to say I haven't had much hands on with other webcams besides that one, so i can't really compare to anything besides one that is build in in a HP Elitebook 8560W, but they are about the same.