Found a case i think may suit my needs its the Compucase 8K Mini ITX, OCUK do not sell this case sadly but i think it might be what im after and in my price range. It has 1 3.5" drive bay and i can easily use some velcro to fasten the ssd inside the case too. It comes with a 120w psu which im sure is enough for the 3500 llano but would love some feedback on what experienced HTPC builders think.