My 83 year old grandfather finally gave in and asked me to get him off of his Vista-era Pentium. He didn't want to spend more than $300, so here's what I did.
CPU: A6-7400K and the motherboard cost me $59 at MicroCenter. CPU set at 45w TDP because I doubt my grandfather is going to be running prime95 or 3DMark benches.
Memory: I bought a single 4GB stick from Amazon, they sent me two. Bonus.
Storage: This was the cheapest 128GB SSD with Prime shipping at the time.
Case: I wanted a slim design case for him and I've used this one in the past. Cheap PSU but it isn't like he's going to be leet gaming 24/7 or doing anything more strenuous than watching old episodes of Grand Ole Opry on Youtube.
OS: throwdown copy of win 7 laying around
I'm very pleased with the build and I'm sure he'll love it when I deliver it tomorrow.