Yup, cheers from me too as only watched SBS so far. Is it worth getting some new BluRay's to see sequential in action? Is it a big difference?
I've no 3D TV to test it with. I can only use the experience of others to answer, but the differences are there if you look. I'd personally not go out of my way though, but then again I'm not very interested in 3D.
If you're already watching 3D Blu-rays then they will already be using sequential 3D as opposed to side by side.
Sequential 3D content is shown in full resolotion, so if the original is 1280*720 pixels - the frames for the left and for the right eye are also 1280*720 pixels of resolution. In side-by-side 3D content there is a loss of horisontal resolution, as frames for the left and for the right eyes are downsized in half - from 1280*720 pixels of each eye recieves the frames of 640*720 pixels of resolution frames.
One disadvantage of sequential 3D content is loss of brightness. Each frame is intended for particular eye - left or right, but not both at the same time. For example, if there are 100 frames - only 50 can be viewed by both eyes at the same time. That means up to 50% loss of brightness. So if you are looking for projector and the main purpose will be sequential 3D content you'll benefit from using a brighter PJ.