I mainley use for : video & photos file generations & burning dvds (including blu ray ) using softwares like MemoriesOnTv (by CodeJam ) , Windows Moviemaker,Panasonic HD writer, Avs4U etc. Use MS Word & Excel Internet access Backup to Seagate drive Need about 500 Gbyte hard drive. also consideration for memory for new versions of Windows, etc.
I have been using Dell desktops for the las 15 years (two desktops so far) & generally satisfied with the performance they gave until the Bluescreen problem recently. Haven't looked at new Dell pcs recently.