Resizing Thumbnail Images

Hi Bob,
I have been trying to get a uniform sized thumbnails across all Showcase items especially in showcase index... but in vain.

This is the nflj_showcase_index.css edit i made..

Code:

.Thumbnail
                {
                    width: 140px;
                    height: 130px;
                    line-height: 100px;
                    display: block;
                    background: @content.background-color;
                    border: 0px solid @primaryLighterStill;
                    text-align: center;
                    vertical-align: middle;
                    float: left;
                }
             
                    .Thumbnail img
                    {
                        max-width: 180px;
                        max-height: 200px;
                        _width: 150px;
                        _height: 100px;
                        padding: 0;
                        margin: 0;
                        vertical-align: middle;
                    }

The problem with this is that when the sizes of the images being uploaded are different.. the thumbnail sizes are different and doesn't extend tot he maximum limit. The attached will show you what i am trying to say. For illustration purpose i have uploaded 3 pics.. 1st is a landscape, 2nd a portrait and the last is a really big image... the landscape image deosn't extend towards the bottom... the portrait doesn't extend towards right....adn so on...I have taken out all borders and containers

 

And the images doesn't seem to be resized proportionately.. how can i shrink the images proportionally as to fit in..

 

That's what i am trying to do... but don't know how