I want to create a progress bar like in the below image:

I have no idea about
I like this one:
very slick with only this as HTML and the rest CSS3 that is backwards compatible (although it will have less eyecandy)
Edit Added code below, but taken directly from the page above, all credit to that author
.meter {
height: 20px;
/* Can be anything */
position: relative;
background: #555;
-moz-border-radius: 25px;
-webkit-border-radius: 25px;
border-radius: 25px;
padding: 10px;
-webkit-box-shadow: inset 0 -1px 1px rgba(255, 255, 255, 0.3);
-moz-box-shadow: inset 0 -1px 1px rgba(255, 255, 255, 0.3);
box-shadow: inset 0 -1px 1px rgba(255, 255, 255, 0.3);
}
.meter>span {
display: block;
height: 100%;
-webkit-border-top-right-radius: 8px;
-webkit-border-bottom-right-radius: 8px;
-moz-border-radius-topright: 8px;
-moz-border-radius-bottomright: 8px;
border-top-right-radius: 8px;
border-bottom-right-radius: 8px;
-webkit-border-top-left-radius: 20px;
-webkit-border-bottom-left-radius: 20px;
-moz-border-radius-topleft: 20px;
-moz-border-radius-bottomleft: 20px;
border-top-left-radius: 20px;
border-bottom-left-radius: 20px;
background-color: #f1a165;
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #f1a165), color-stop(1, #f36d0a));
background-image: -webkit-linear-gradient(top, #f1a165, #f36d0a);
background-image: -moz-linear-gradient(top, #f1a165, #f36d0a);
background-image: -ms-linear-gradient(top, #f1a165, #f36d0a);
background-image: -o-linear-gradient(top, #f1a165, #f36d0a);
-webkit-box-shadow: inset 0 2px 9px rgba(255, 255, 255, 0.3), inset 0 -2px 6px rgba(0, 0, 0, 0.4);
-moz-box-shadow: inset 0 2px 9px rgba(255, 255, 255, 0.3), inset 0 -2px 6px rgba(0, 0, 0, 0.4);
position: relative;
overflow: hidden;
}