Have a look at some jvm-based languages/frameworks. Grails/Groovy, and Rails with JRuby may be interesting to you. Both Groovy and JRuby have strong metaprogramming aspects, which may be of interest.
Heck, even Play! might change your mind about Java.
In the PHP world, there's a huge number of choices/options out there, and finding something that fits your style can be a challenge (because, until you know your style, you don't know what fits).
http://www.reddit.com/r/php would probably be a good place to ask these questions too.
