I am really appreciating this thread ... and ALL the views expressed.
I haven't ... yet

... invested in "my own" web server ... but I have had experiences with Pentiums, Celerons and Dell computers.
Personally, no matter if its for a desktop, laptop or a server ... I will NEVER go with a Celeron again. My current desktop is a Celeron (from COMPAQ) and I have not been overly "pleased" with it since shortly after day one. If I had the $$ I would have invested in a Pentium again ... right away. I had Pentiums previous and will return to them when this desktop finally "implodes" and I have to replace it. Even with just the relatively simple stuff I do I noticed my old Pentium processed & compiled things a whole lot better than the new Celeron.
But you can be danged sure ... no matter what I read or where I read it ... before I buy my next computer I am going to do my own research and decide which kind of system will best suit my needs. I did not do that with my last purchase ... and you can danged sure THAT will never happen again.
I bought my first computer in 94 ... did months of research and had the thing built exactly to the specs I chose. It was "state of the art" at the time and cost me over $5000. But even 3 or 4 years later is was still considered a great computer compared to what was then being sold off the shelf.
But that could never happen these days. When I bought this computer ... it was pretty good specs when I bought it ... but within a few short weeks it was considered a "dinosaur". Technology is progressing in leaps & bounds these days ... far too fast for this old guy to keep up.
As for Dell's ... the people who have them as desktops that I know tend to either love them or hate them. It seems the ones who just want to do simple stuff on the computer and remain "clueless" about the inner workings or how the PC actually works are the ones who love them and the Dell support they got. Everyone I know who really get into games or intensive programming stuff hate the Dell's.
Just my uneducated 2 cents worth
Peter