If you build you're own computer; it will be a thing of beauty, and exactly what you want (or need).

One little point.......you are the warranty/guarantee. If something breaks down; it's up to you to deal with the supplier for replacement part. (or the dreaded RMA)

Sometimes it's just easier to get a prebuilt, with a 3 year 'on site' warranty.

My 2 Cents worth