I have been building Flash and CSS sites and not starting to get into building more DYnamic sites. All career advice I have had from industry pros is to pick a certain area to focus on as a trade. For me I want to create dynamic Flash sites and applications.
Although I am focused on the design side I would like to learn a server side language. I was focused on PHP until I learned that I could also run ASP.Net on my Mac using C#.
So from any developers or Flash gurus is it worth sticking to PHP or looking at the future of .Net with its ability to create on and offline apps?