OS X 10.5.2

Hi, I need pdo_msql and GD2 extension support in my php environment, but as I am sure you are aware the default build that comes with leopard on the mac is lacking these extensions. what I need is a way to either install them or if I really have to compile php with these included. I have never had to do this as I have been using windows until recently. If I need to install php from source it seems I will also have to compile apache, will this replace the versions of php and apache that are bundled with os x 10.5.2. I'm looking for a clean solution to this problem I don't want multiple versions etc. I have spent over 10 hours on google looking for a solution to this before emailing you and so far there does not seem to be a clear and consistent way to resolve this. I work as a php developer and just got the MacBook Pro thinking it would be nicer to work with, what a nightmare. Kind Regards, Lee.