If you are frustrated of first developing and designing a website and then checking it in different browsers then Adobe BrowserLabs online service is the one which will act as a soul-saver for you.
its an interesting online service which is in free testing preview face from which user can test unlimited no of webpages designed by him against variety of browsers. Currently it supports only limited registrations but its a must watch service which can reduce your pain. You can get more information about it from :- http://labs.adobe.com/technologies/browserlab/ Happy Programming!!!!!!