agree with the gizz0r... ideally, we should have:

HTML
<!--[if lte IE 6]>
...ie6minus.css
<![endif]-->
<!--[if IE 7]>
...ie7.css
<![endif]-->
<!--[if IE 8]>
...ie8.css
<![endif]-->

and slowly, over time maybe IE 8 would converge with other browsers @ css3 and we wouldn't need any MORE conditionals..