It probably makes a lot of difference where you're located. The best machines, and the best deals will be quite a bit different if you're in the UK, Canada, or the US (to name only obvious places).

FWIW: I've been happy with Micron computers through (currently) 5 generations of replacements. Since I do support some business uses, my requirements may be a little different than yours. Performance ratings posted in various mags, etc., have always been near the top, and prices have been "fair" for what you get.

There seem to be some real bargains now, especially if you're interested mainly in what's "popular" at the moment. Shop around.

John