Accurate Development Page Preview?

What do you use to preview your page development in multiple browsers ? I presently use Adobe Browser Labs do you think it’s accurate ? What do you use to get an accurate perspective without having to install dozens of browsers on your system ?

I think anyone developing a site should have (A) a web server, preferably Apache with all the bells and whistles, on their development system and (B) as many browsers as they can fit on their system.

They should also have several unlike systems with different operating systems and screen sizes, including a cell phone with a browser.

I don’t believe there are any shortcuts, and I think those who look for them are chasing rainbows.

I wrote about this on another thread that there should be a package that will update it’s self.