Just finished my first project on Silverstripe :)
I must say I'm impressed with what i was able to do in a few weeks (including the delays related to waiting for designs and getting feedback from the client...)
For someone who is originally a front-end developper, and didn't know much in php, much less in object oriented coding, it was fairly easy building from scratch a mid-sized website in Silverstripe. The CMS was the simplest thing to put together and use.
So I would like to thank everyone here, the forums are where all the answers lay, the guys at ssbits.com, especially Aram, who created a very helpfull tutorial on which I based my site (http://www.ssbits.com/tutorials/2010/dataobjects-as-pages-part-2-using-model-admin-and-url-segments-to-create-a-product-catalogue) although it needs a little review :)
So here is the link to the site: