I only play HC so the touchpad has to be responsive and the left and right buttons need to work well. Poor play due to a bad touchpad tends to leave me RIP!
I currently use an older Gateway (7 years old). It is heating up and the vid card tends to go wonkers after about 15 minutes of play. I clean it frequently, use a Cooler Master and an additional table fan. That worked for awhile, but it's time to upgrade as the play time is geting less and less before it overheats.
I'm looking in the range of $800 to $1200. It does not have to be the latest and greatest.
Suggestions are welcome.