I bought mine from Scan about 2 1/2 years ago. Faultless and the cable tidying is very good. It also was cheaper than buying the bits. Nowadays building your own is very expensive compared to looking around for one that is built. but a good deal. Depends also on what you want one for. If it's for gaming my advice definitely stands as the graphics cards are very expensive, but for a machine to surf and do some simple office stuff it MAY be cheaper to build your own. I've been building my own for 30 years, it isn't really worthwhile these days.