About a year ago, I build my first PC to primarily use for gaming and programming. Since then, I have found some things that I would change about it, so I'm thinking about making some upgrades/changes. Here are the current specs:
Intel Core i5-3470 CPU (stock speeds)
Stock Intel heatsink
MSI Z77A-G45 motherboard
Asus DirectCU II GTX 660 GPU
Patriot Viper 3 8GB 1600MHz DDR3 RAM
60GB OCZ Vertex 3 SSD (for boot and programs)
1.5TB Seagate Barracuda HDD (main storage)
LG optical drive
FSP Group Aurum Gold 600W 80+ Gold PSU
Rosewill Future case (bad decision, I know)
The main problem I have right now is that the PC is really loud, so I've been tossing around the idea of getting a Fractal Design Define R4 case, because of its sound damping material, good airflow, looks, build quality, and cable management. I'm also starting to feel a bit cramped on the 60GB SSD, so I'm also thinking about getting either a 120GB Samsung 840 Evo or Corsair Neutron GTX SSD.
The thing I'm probably most hung on is the PSU. I'm realizing it's completely overkill, and I question what possessed me to buy a 600W power supply in the first place. I'm considering getting a 500-550W modular power supply instead.
What I would like to know is what you guys think about these upgrades. Are they worth my while and money, or will they really not change anything? Thanks in advance.