Hi, I hope someone can give me some advice please. I've just joined the site so would appreciate the help. I currently have an Alienware X51 R1 that when orientated horizontally measures 9.5 centimeters high. I have it on the middle shelf of my tv stand under my tv that I use as a monitor. The maximum height case that will fit on that shelf when orientated horizontally is 22 centimeters, I'm looking to replace my current computer so can anyone recommend one that will fit in that space? I'd prefer either an Intel Core i5 or at a push an i7 with 16Gb of memory. I'd also like to have a reasonably sized SSD and the best graphics card that will fit in that case along with a powerful enough PSU. If Windows 10 was preinstalled then I could probably go without an optical drive although I'd prefer a bluray drive, really all I want is something that can be upgraded in the future with not much hassle which the Alienware X51 is too small to be able to do. Thank you.