First some background:
I\'m working on some webapp prototype code based on Apache Sling which is OSGI based and runs on Apache Felix. I\'m still relatively new to OSGI
I have some experience in building applications using Aries Blueprint. It has some very nice features regarding OSGi services and config admin support.
If you search for some great examples have a look at the code of Apache Karaf which uses blueprint for all of its wiring. See http://svn.apache.org/repos/asf/karaf/
I also have some tutortials for Blueprint and Apache Karaf on my website: http://www.liquid-reality.de/display/liquid/Karaf+Tutorials
In your environment with the embedded felix it will be a bit different as you do not have the management features of Karaf but you simply need to install the same bundles and it should work nicely.