Will Codeigniter work for my needs?

[eluser]n0xie[/eluser]
[quote author="ChazUK" date="1270678021"][quote author="clooner" date="1270677513"]
It is actually really easy to setup something like that... Simply detect the current url in the config and load it accordingly...[/quote]
So how would I go about having a centralised libraries folder?

The only thing that will differ between the sites would be the routes, controllers, models and views. (most probably)[/quote]
The new CodeIgniter 2.0 will make sharing of common libraries much easier. You can do it now using symlinks or absolute paths to a common library directory.