看看IE7中的网站是什么样的服务？

Are there any good services that you can use during development to try out how your site renders in different browsers? We develop on macs. I'd like to be able to pay a month or something like that and be able to VNC in and test my site in IE6, IE7, Opera, etc without having to keep a windows box around.Are there any good services that you can use du