After more reading I agree about the object support in PHP4 - bleh. I'd definately install PHP5, I'd just have to be really careful, I dont want to be the IT guy who screws up the webserver
Its now a tossup between PHP5 and Java Servlets - I like the type safety of Java but I like the easy configuration of PHP. I'm laying out the design solution now then I'll pick a language based on how much OO I'll actually need.
One more question - if anyone knows, how is the support for polymorphism in PHP5?