I am using umbraco for a few of our smaller projects, however, I would like to integrate it into a couple of new website and was wondering the best approach to take.

The new sites will need have a reasonable amount of additional data coming in from a central web services application. This is to be based on the url that is requested and can be handled inbound using urlrewritingnet and / or ISAPI rewrite to redirect it to the correct internal url.

In the existing CMS solution that is in place (in house written, extremely similar to umbraco in design.) The pages all extended a base CMS Page class and added the additional data directly in as serialized xml.

This data was then used right the way from top to bottom of the page - IE: included in everything from the titles to the footer.

What would be the best way to achieve similar in the umbraco framework?

I have already looked at the possibility of using GetXMLFromUrl and it looks like it MIGHT be achievable but would prefer to utilise the .net framework to handle the the requests and be able to create custom objects.

I also looked at the method of creating custom class libraries, though this seems long winded compared with how it is done at present