I've never heard anything about Dell being unfriendly to gun owners.
I work at a state university and manage a group that is responsible for around 1,000 desktops and laptops and we have close to 40 servers. About 270 of those PCs are in use in labs that serve over 6,000 students - they are ABUSED. They are all Dell.
7 or so years ago, I evaluated Gateway, Dell, Micron, IBM, Compaq, HP, and a few others. Dell *whipped* everyone soundly. I chose what I thought would give me the least amount of trouble. So far, I've been extremely happy. That was a significant change for me since my previous job was at a telecom with all HP and Compaq stuff, and before that I was a Compaq and HP reseller. I hated Dell up until that point.
Notes:
Dell divides their lines into "Corporate or Professional" and into "Consumer".
The Optiplex, Precision, and Latitude are their Corporate or Pro lines. IF you are buying for a business, buy one of those. The support IS NOT outsourced outside the States on those boxes (but it is or at least was on the consumer stuff - Inspirons and Dimensions).
Buy the Gold warranty stuff and CompleteCare and they will take care of it even if you drop it or run over it with your truck
I don't like Gateways. Mainly because their sales and support staff could never take care of us. They opened a bunch of stores around here and now they are all gone. I don't think it looks good for them at all.
HP/Compaq is a shell of what they used to be. Carly Fiorina did a great job of destroying what were once two outstanding tech companies.
Building something yourself is great if you have the time and inclination. The problem is that it can become a nightmare if you're not careful. If this is going into a business, and something goes south, even if it's not your fault, you will still be blamed if you built the thing. Not a fun place to be.
Hmmm... what else. Oh yeah... I use PCs every day. I have them on my desk at home and at the office. But when I'm on *my* time, and actually I guess for about 80% of work time, I'm using a Mac.