I like hearing about computer builds. Humans have the upper hand in tasks that require strategic planning, decision-making and multitasking.
To choose the right parts for anything with a chip in it, you need to decide on 3 things;
Needs - The most important thing. Your goal, what is it you do with this computer?
Price - The next thing is budget. Pretty self explanatory.
Sacrifices - Most people need to sacrifice performance to meet budget but it could be wattage, acoustics or design choices.
Some more tips with the acrylic sheets. If you slowly heat the plastic with a torch, you can make nice curves with it.
When you weld these acrylic pieces together, the parts must be polished flat and at least 10 mm of material to bond. 12.5 is better.
Sometimes I have to hold pieces by hand for 5 minutes before I can leave it set.
After a table saw cut I'm left with a nice edge but it should be glazed with a MAG Torch. This will polish the surface.
Acrylic sheets can be a foot thick and still transparent.