What is a good computer for Linux

[Douglas Pollard]

  HI all ,  I am getting a bit long in the tooth to still be doing video 
at age 87.  You might take this fact in consideration. I think maybe 
take that into consideration that in giving advice. Last fall I bought 
an HP Gaming computer with windows and had a hell of a battle figuring 
out the Bios to install  Ubuntu  I am Presently doing 1920 x 1280 
video.   I have always used  Dell boxes and so am familiar with the 
bios. If anyone can offer advice can give advice on a Computer with 
similar bios that is more friendly to Linux I would appreciate it.  I 
have an old optiplex Dell  780 that is getting flaky. I guess it could 
be rebuilt  but not by me. I am not up to that theses days. The Hp I am 
using is a Gaming machine.But maybe I don't need that, I guess a machine 
that will do what I want to do would fast enough. All suggestions on a 
new or rebuilt box would be helpful.