Dell XPS 8100 move into a Silverstone SST-SG01B-F PC case?

I have a Dell Studio XPS 8100 which still lives in its original case and over time I have upgraded the PSU, Optical drive, HDDs, GPU and RAM, as well as adding a TV tuner. I would like to move this machine into my lounge and make it my HTPC but unfortunately the original XPS 8100 case is too big. I need a case that is no larger than 40cm in all directions, and I really like the look of the Silverstone SST-SG01B-F case (http://www.amazon.co.uk/gp/product/B001DQCAXK/ref=ox_sc...).

Is what I am proposing possible? I have heard that some people have managed to transplant the components from their original XPS 8100 cases into larger cases, but not necessarily into another micro-ATX case.

Thanks for reading this far and I'd appreciate any thoughts or comments.